How to get rid of frizzy hair

De

I have 2c hair, down to my hips but it is always so frizzy (I've had all my split ends cut off). I have tried so many different hair curl creams/mouse, different conditioners/hair masks, no products, soft cotton towl to dry it with, blow drying, air dry and yet i cant find anyway to stop the fizz! (I never brush my hair dry, only when its wet) It is also still quite wavy/curly. If i straighten it (only maybe every 2/3 months) it is still frizzy. I do live in a town on the coast where it is pretty hot all year round (28°c average) so maybe that has something to do with it. I was hoping maybe anyone has any other options or solutions for me to try because I'm feeling really frustrated and insecure because i feel like im having a bad hair day everyday. My hair has always been like this even even when i way young :(