according to your previous posts, you’re 15 right?
-my best advice to you would be to get proper rest first in your particular situation.
-if you have a foot injury that you’ve been training on for a while, it may have contributed to your shin splints…get that foot healthy first and chances are good that you will get rid of your shinsplints(and even if it’s not on the same leg)
-go see a PT if it doesn’t start to get better anytime soon or maybe even a doctor just to make sure that you don’t have a stress fracture.
-strengthen your Tibialis ant. once the pain is gone,but don’t go crazy about it, go gradualy if it’s during the competitive season, you don’t want to tire too much/overuse that area or just do it in the off-season.
hope this helps
good luck with that and get well!