I'm 16 years old and just joined my high school gymnastics team after a 6 year break from the sport. I still have all of my splits and my bridges and basic skills that can be done with muscle memory and flexibility. But anything that requires strength is a problem. I'm pretty overweight. I'm about 5'4" and weigh 160 pounds. Bars has always been difficult for me, but now is worse than ever. I can't even do a chin-up, let alone a pullover. Does anyone have any good upper body exercises for beginners? Literally everything is hard so I need good modifications. For example, instead of push-ups, I could do 50 wall push-ups a day.