18 and hair is impossible to style with thinning

I’m 18 and I’ve struggled with my hair for a long time, I know it’s thin and it doesn’t help that it’s naturally fine and falls flat whatever way I style it, I’m about to get a haircut soon and I want to know what style to go for that would make me look normal / hide any insecurities about my hair, any advice will be greatly appreciated as this as main my main insecurity and struggle for years