HAIR PROBS?!

Okay so I have very thin hair and it's very long. I HAVE to wash my hair everyday or else it will be greasy af. I literally look like someone threw a pan of cooking oil onto my head if I dont wash my hair everyday. And I KNOW it's not good for you to wash your hair everyday but if I dont it'll be gross.. I tried dry shampoo and it just makes me feel like I make more crap on my head and just makes my head heavier (if that makes any sense). I dont know what to do! and i feel like that is why im losing sooo much hair because my hair is extremely thin right now! I know it doesnt look thin but trust it is! Also if anyone has product on how to grow hair on your hairline please let me know. I feel like my hairline is pushing hack further and further and my forehead is getting larger 😦😧