u/Mysterious-Lychee106

So i starter boxing maybe a month ago? i had a teacher but unfortunately her gym had closed down.

I have boxing gloves and access to a punching bag in my local gym, i know jab and cross but i cant seem to get a left/right hook or a uppercut. Its quite hard and when i do i end up hurting my wrist, and on some crosses i hurt my wrist, i think it might be my form or something?

any tips will help!