Here are some YouTube channels I'd check out:
https://www.youtube.com/@hockeytraining
https://www.youtube.com/@CoachZac
As mentioned earlier, I'd focus on emphasizing "body weight" training since you're a younger teen. Even in workouts that uses weights (barbell, dumbbell, medicine ball, etc.), you can still do these workouts with a BW focus. I really like Hockey Training because they have a lot of "free" resources and even more "paid" resources.
There are also some good Instagram accounts that I'll have to dig up and will post here for your benefit.