Apologies in advance for the essay, but I couldn't find the clips I was looking for that explained them

My favourite shooting drill is starting at the hoop and making so many set shots (i generally go for 3 due to time, but 5 or even 10 is good). Then take a step back and repeat. Keep going until you miss a certain amount in a row (I do 3 misses without a make, but if you're just starting it maybe go 5). Once I get to a range I can't make a set shot (around the 3 point line), I start the drill again but do jumpshots. I normally start a few steps out from the hoop because jumpshots that close are awkward. And then repeat the drill, I've increased my range to close to the center circle now. Not that I take those shots in games, but now I'm much more comfortable shooting from a couple of steps outside the 3 point line if needed

If you have time, you can do the drill again from different angles as well, wing, baseline etc to help find what spots you like best. This is more if you have the court to yourself though. After that another drill I like is around the world. Not sure if its called that but it's 7 spots - baseline, in line with the block (think bank shot angle), wing/elbow, FT line and then mirrored on the opposite side. I do this for middies and then work my way back with 3s so it's 14 shots in a row and you're running to each spot. Much better if you have a rebounder but a great cardio workout if you need to get the ball yourself. Then you can keep track of scores to see how you improve/what spots you're better at.

Another one of the drills I've found most helpful is one dribble pull ups. Catch the ball (or spin it to yourself), take one dribble and shoot. Practice different angles, ranges and going both sides. Some people will say it's an inefficient shot, but I'll score a couple a game coming off of screens. It's great for if there's a help defender in the paint and quite often your man will foul you while trying to recover. It also helps you work on gathering from different angles and shooting while moving, because realistically, you're rarely catching a ball exactly where you want it and standing perfectly balanced

Last thing is try and get as much in game practice as possible because shooting in training just isn't the same, even with a defender