Have a Go-to. When my shot isn't falling, I have some spots that I know I don't miss. For me, its a Corner Middy/3 or and elbow jumper. Just find something that You can lean on.
Nash Is low-key perfect since he is pure skill, no athleticism. Others that are good at Curry(Off-Ball Movement) Chris Paul, and Kyrie (Overall Offense)
For Defense, Jrue Holiday and Alex Caruso a good Bleacher Report video https://www.youtube.com/watch?v=U0aWY3tYCpc https://www.youtube.com/watch?v=RyA_wTOzza4