4… Get a right haircut.
Make sure you choose right hairstyle. Lopsided long bob to a layered haircut with side swept bangs are best for girls with limp hair as it gives the effect of voluminous hair.
Make sure your bangs or fringes are long enough to be tucked behind the ears. Why so? Cause the hair will get rub against forehead and that will lead to oilier and limper hair. And we tend to tussle fringes which will make it greasy and give you a tousled look.