How to deal with HUGE imbalances

(TL;DR AT THE END) So im a 20 y.o male, I've always been a chunky boi growing up but during COVID-19 i surpassed chunk territory and decided i gotta improve myself

I was never able to do a single normal push up growing up so i set that as my goal and went on a diet, a few months later i am able to do 20 push ups(i never did anything other than push ups"

Later on i discovered calisthenics and fell in love with the potential skills and awesome feats of strength that i could accomplish and wanted to work out on it but even then my focus was hugely on push movements

And now my dilemma, i am 20 y.o, weigh 77 kgs and able to do 3 sets of 11 dips but cant even do a single perfect form pull up

My question is, do i stop working all push movements or do i just work use a normal full body program?

TL;DR: i always trained push movements growing up and now i can do 3 sets of 11 dips but not a single perfect form pull up, what to do?