I have super oily hair naturally, or I think it's naturally... idk if I'm just not rinsing my hair well enough, or what. I tried only using shampoo. I tried waiting three days before washing it again, but it didn't work. I'm kind of at a loss here on what to do. It seems if I don't bleach my hair or at least dye it, it will be greasy. My roots grew out and my hair is greasier than ever. I watched some YouTube videos about never using soap in hair, but I'm kind of nervous to try that. Do any of you have any advice?!

I have wavy thin hair, I rinse with medium to hot water and sometimes end with a cold water rinse. I use treseme shampoo and Argon oil conditioner.