I'm looking for help with my technique. I'm currently throwing around 39.60 meters (average), and I know there’s a lot that’s off, but I’m not exactly sure what to focus on first. Any technical feedback would be really appreciated.

Hey! My name is Martin and I am a senior in highschool in Chile. My pr is 40m and I'm trying to get to 50m or more this year. I'm working on building strength and refining my technique to hit 50 meters or more