Help! oily, frizzy, fine-medium, wavy hair (more curls than I think?)

[chloeeeecccnncn]

I have oily and frizzy hair. My hair is wavy, and fine-medium. My goal is frizz-free wavy hair. I'm starting to think I have a stronger curl pattern than I think. Some parts of my hair are straighter, and others are almost 2C and extremely frizzy. So, I'm thinking I have more curls than I think, and I need to develop and take better care of them. If it is my curl pattern, how can I revive and bring out the curls, and maintain healthy, frizz-free, and oily-free hair? And if isn't about curls, why are some curled more than others, and how can I reduce the frizz?

I noticed my hair is frizzy whilst in the shower. It's even worse once I'm out. I rarely blow dry, always air dry. Every time I brush it, it also tends to get extremely frizzy and poofy as well.

I try to keep the product minimal, as it causes my hair to get oilier.

I haven't tried many products, and my routine is pretty minimal, just leave-in conditioner after showering.

[RowanDee]

Never brush your hair dry! Always make sure it’s wet and that’s when you should be putting products such as curly cream, gel or leave in conditioner, Also don’t wash your hair that often, really curly hair needs the oils, wash your hair once a week! And try diffusing your hair! It helps with frizz

[lmaster]

Curly hair needs some sort of curl defining cream or gel @chloeeeecccnncn trust me, if I don't put anything but leave in conditioner in my hair, it looks atrocious. Do you have a microfiber towel?

[chloeeeecccnncn]

What curl creams are good? And yes, I have a microfiber towel