Unusual but could happen.
Don't forget, pro coaches didn't want Usain Bolt to EVER do the 100 because he was just too tall to ever be any good at it. Stick to 400s, you're good there, and sometimes we'll let you play and fail in the 200.
I reached similar (bit slower) mile pace as a master with limited running mileage, total and weekly. For me, 1500s were on the long side already, although I actually did more 5Ks.
Long distance, I'm just slow. Once in more or less my best form, I did a 10K in just around 40 min, but that was a suffer fest. No fun was had.
I'd say, go to a 400 meter track, hit it at a time when it's dry, cool enough and not too windy.
Do a test training to figure out your short pace.
I usually considered my 8x300 meter (2-3min standing rest) pace to be about equivalent of 800 m race pace. 6x600 would be like 1500/mile pace.
Find a steady pace you can repeat, gets progressively harder to do, but the last one isn't an unhealthy mess with sloppy technique.
Might take a few these trainings to get comfortable running at that pace as if it's normal rather than feel hasted.
Then eventually do a full warm up (20 min run), drills and any stretching you subscribe to, and hold that found pace for a full 800 or 1500 race. Stopwatch doesn't lie, track length doesn't lie.
You might even be a gifted 400 or shorter runner and not know it.
A teammate of mine is a skinny master, he likes to do (half)marathons but in track competition he does sprint distances. Mid distance he's not even decent. Somehow, his muscles do it. Doesn't necessarily look pretty the way he does it, but he sure does it faster than I can. Longer distance I could match or beat him, if only I liked suffering.