I really wanna get good at long jump , high jump and shot put

I'm a 16 year old guy. It's my last school year. I've been playing football for 4 years. I just lost inter house in my school. Now , all that's left is long jump , high jump and shot put(our school doesn't do races🥲). I do not wanna end this year's sports day with 0 golds. I want at least one. I'm ready to go all in, I js need some guidance on how I can improve my technique other than yt. If you guys know how to contact a coach who's willing to teach in/around indirapuram, please lmk. Help me out fellow teensssss🥹🙏🙏🙏🙏