any1 on sp run/belong 2 a runnin club?

I used to do sprint training at a club until it interfered with club training to much.

I ran long distance for school when I was younger, through u14s, 15s, and 16s. Would make it all the way through to the best 100 runners in NSW for my age group then finish around 50 or something. I ended up giving it up because of the pain and the way that I always ran myself into a total wreck, I would put everything in, well over 100%, until I could not breath and my legs stung to much. The satisfaction though of completing a race and getting a good position was always so rewarding though.