david45 wrote:
Except I have been running for over a year, and despite increase in mileage, I am not improving
I forgot Step #0. Do you have the right mindset to improve? There is a lot of self-doubt coming across in your posts. You act like you've tried everything, and nothing has worked. Don't let a defeatist mindset prevent you from trying anything that might let you discover what kind of training works.
If running for a year hasn't worked, you have to change something. How you change depends on how you answer questions about yourself. (That's usually the role of an experienced coach).
What have you learned about yourself in that year?
Did you read the primer I linked above?
Can you answer some of the questions in Step #5 about yourself?
Read section #4. Which of the 12 Key workouts make you feel good, and which seem too tough?
A year is not a long time, and if you were already injured, you probably didn't get your mileage up that high.
What is your goal? If it is just to have a good time and find camaraderie, find a local Hash House Harriers and join them.
What is your strategy going to be to achieve that goal? (Again, that's where an experienced coach helps).
If you had run in cross country in high school, typically these kids can run around 40 miles a week, and eventually, over the course of years, might ramp their mileage up to 60 miles a week or 75 miles a week by senior year.
If you are not running 40 miles a week after one year, don't talk like you've "been there, done that". If you are, then it is time add some intensity, and/or ramp up to 60.
Referring to the primer, for a beginner, I would start with ENDURANCE and SPRINT workouts, gradually building up ENDURANCE by increasing the weekly mileage, while using a low volume of SPRINT workouts for developing good form at high speeds. Once I'm happy with weekly volume, I would introduce STAMINA workouts. So for the 6:51 miler, this might at first be a workout like a 45 minute steady state run at marathon pace (8:51). And last would be SPEED workouts. The next year might repeat this cycle, but with bigger numbers. Of course if there are races you want to do, I would look for adaptations to accommodate the races with realistic goals.
If you give it the real college try, for a few years, and you still genuinely don't improve, you may have to rethink your goals, accepting that you may be this rare non-responder to training, and decide if your love for running means love for running fast, or just love for running.