How to run faster by track season?

Question

I am a 14 year old female that currently runs an average of 13 seconds for the 100m dash. I really want to get a faster time(around .50s to 1s) faster by track season. I have been told that would take TONS of work and is almost impossible, but I don't plan on giving up. .50s to 1s is just my goal though, I'll be greatful if I go faster by even .10s.

Also, I play tennis and swim.

Answer 1

run in the off TRACK season

Answer 2

Lift weights and light jogging on the off season. As your season comes closer, start work on your start and form.