Dry shampoo help

So I've always been someone to wash my hair everyday. I have very thin hair(a lot of it though) and my hair is GREASY lol. Ive tried training ny hair before and it never works. But now I have "wine hair" and i want to keep my color as long as possible. So I invested in aveda hair products and ive been washing my hair three times a week. Good thing I work from home because I look gross. Ive tried several dry shampoos and not of them do anything. My hair doesn't look any different before or after unless there's a white caste. I need a good recommendation and maybe tips? Idk if im doing it wrong or what but I need to figure it out lol