I have all the traits of a good runner but im not

You also said, "But I’m just not good at distance running. The only thing I can think of is ..." These are indications to me of a confidence problem, but like a lot of young runners it's largely based on impatience and comparison to peers.

Not everyone progresses at the same rate. You need to give yourself time to develop. For most people it takes time. There are no shortcuts. Run more miles. Do the workouts. Be patient. Keep making small, incremental improvements. Train your weaknesses.

If you feel weak and thin, what are you doing about it? Are you in the weight room? Do you have a strength plan? Having physical traits is meaningless. Some traits of a good runner are a strong work ethic and being objective about your weaknesses so you can figure out how to mitigate them.

What runners say is often not close to the truth. If I had a dime for every guy who said he ran 5 miles a day, I would be very rich. Many people say they run 30 mpw, but if that is 30, 30, 15, 30, that is not 30 mpw!

Plus, how long have you been running? I knew nothing as an 8th grader! Race Strategy, nutrition, hydration, sleep, and dedication to all elements which make you excel in life are important. By the way, I ran 12.6 in the 100 yard dash in 8th grade. That is slow!

I do not want to be mean but there are many ways that you could improve!

I doubt if the mind is what is holding him back. For most young modern runners it is just getting out the door each day. Most do not! Dr. Jason Karp, PhD, states that is is the body which rules the mind. So, if you do "realistic" training, you will improve your results. Look at how runners trained in the 1970s. Most of us trained too hard. Now young runners hardly run and they expect results! We have it backwards.

here's the deal. sub 5 and 18 you might make some mediocre-to-bad d3 XC teams but that doesn't scream dominance. honestly you sound closer to competitive with a 12s 100m on little sprint training than a 5 min mile running dozens of distance training miles a week.

personally i'd suggest trying something like the 300H or both sets of hurdles. your sprint times would pass for a "little speed" as a hurdler, and make you faster than some 110 types, assuming your technique was good. your endurance would help you compete with faster runners, some of whom hit the wall on the final straight.

or, something like the open quarter. you don't have blazing speed but i knew some solid HS 400 runners who were steady eddies, mid-11s but never slowed down.

or even the short sprints. some schools badly need kids for relays.

if the deal is you wanted to run in college, a mediocre program would take someone like you at distance. you don't have to quit. but you won't be much more competitive that level.

but if you're frustrated, it would be worth trying low hurdles. that'd be my first stop. a chunk of the kids are out there just for being tall. if you have any hurdle form you jump ahead with the athletic kids.

also, if you're "solid" at several events and can get over any PV or HJ heights, maybe decathlon.

i'd also try my luck at field events and see if i fit someplace there.

None of those things alone or together indicate you should be fast.

Yeah, measure your course :-)

You are under weight, you don't run enough miles for us to know if you are any good. sounds like you could use some muscle. when my BMI was 18.5 I was 5ft 9 and 122, all of my pr's are at 133

I have none of the traits of a good runner and I'm not.

We need more info here to more accurately assess you. None of these things alone necessarily means you'll be great at distance running, although they don't hurt. You didn't even mention your age and sex in your initial post nor did you provide much background about what your training looks like. From reading this whole thread, I've gathered that you are a 17 year old male. A few things at play here:

1.) If those iron numbers you listed are for ferritin, then you have incredibly low iron and are anemic to the point it's likely severely impacting your aerobic ability. Anything below 30 is considered low for endurance runners. Ideally, that number is more in the 50-70 range. You should start taking your iron supplements daily along with a 500 mg vitamin c tablet (unless dr gave different instructions.) Take it at night and don't take or eat any calcium with it as the inhibits iron absorption. Start eating more lean red meats and green leafy vegetables and cook using cast irons pots if possible...all of this can help start to get that iron up.

2.) As someone else mentioned, muscle fiber composition plays a huge role in running potential and which events you'll be good at. When you ran the low 12's for 100 was that off any real sprint training at all? If not, that's decent speed. Not really good enough for sport sprints, but at the HS level, you might find some success in the 400/800 with that kind of speed with more specific training for those events. Someone else suggested you might accel at hurdles if you can learn the technique. With long legs and decent, but not elite sprint speed, you might do well at 300 m hurdles or could likely even do decent at 110's if you master the technique.

3.) We don't know enough about your training background to give an accurate assessment. How long have you been training for? Do you run 30 mpw all year? How long have you been at that mileage consistently? What kind of workouts are you doing during an average week in the in-season and off-season? Are you being pushed in races? Do you have training partners around your same speed? Any injury history? Do you feel like you're pushing all out and using an effective race strategy each race or is there room to improve there? What are you track PR's in each event you've tried? Do you do any strength training?

4.) Generally speaking, your mileage is quite low and your times are not that bad (not super fast, but not terrible by any means.) If you can handle a gradual increase in mileage, you'd likely benefit from that, but I'd get your iron up to at least 30 first for ferritin.

5.) While your BMI is within a healthy range and is not fat by any means, it's still rather high compared to most competitive male distance runners. I don't think you should focus on losing weight because that could get unhealthy, but I would not see 18 BMI and think "must be good at distance running." If you're eating a lot of junk food, soda, or excessive calories compared to your daily exercise, you might be able to make some improvements just by improving your diet a bit if it's currently skewing unhealthy.

I think you should quit

Switch to 800m

A BMI of 18 is not high! It's not just not fat - your doctor would probably tell you you're underweight.

BMI 18 is probably underweight for most male runners who don't look like Asbel Kiprop. If the OP were 5'10", that would be 126lbs. Jakob Ingebrigtsen's BMI is 21.5. There's good chance the OP's low iron is due to RED-S. . . just not eating enough.

At some point when I was in college and running 100-140mpw, I stepped on the scale and saw 126lbs (at 5'9.5"). I immediately decided that was too low and gained 10 pounds in the next week, chowing down for an hour each meal in the dorm cafeteria.