Please don`t use all your fingers. Release with your index and middle finger. If u feel uncomfortable like that u can also use just your middle finger or middle and ringfinger. The first option is the most used one. And don`t move to fast. Stay near the basket till u can make 10 in a row. It will take u some time to become a good shooter. If u work every day on it for 4-6 months u will be the best shooter on your team a make 3 pointers easy. Also it is really important to film yourself, so u can see all your mistakes and fix them. Like u can film yourself every two days work on changing one thing. After u have a good jumpshoot it will be just tons of reps
Release using either your index and middle finger, or you can release using all 3 fingers excluding you thumb and pinky, depends on which one is more comfortable
My finishing is good I just need to learn to make the ball spin and I play with double rim so if that shit don't hit the board perfectly it ain't going
Use your left hand and just stand in front of the backboard and just aim to hit the backboard and have the ball bounce off lightly and catch it and do it again
Bro u been playing for almost a year only. Relax, you probs aint even able to lay up with ur strong hand consistently. Once u start getting better and start practicing different types of finishes, dribble moves etc. Just remember to practice the same thing both sides and eventually u will be able to do a lot more with ur off hand
Depends, how do u judge ur in game performance? Dont just look at the score. For me, the way u know u have improved is when u either, start knowing EXACTLY what to do in different situations in game or when u score more while taking less shots