I need a good product.

Hi. My hair is really fine. It breaks off a lot. It`s really thick though. I never blow dry it or anything to try to keep from damaging it, I was just wondering if anyone knows of a good product to strengthen my hair. Also if you know of ones that aren`t very expensive it will be appreciated. I`m just sick of never being able to wear my hair down because it looks fried if I do but it`s just because I have a lot of breakage. Thanks.