hair help please 😭😭

I have really curly hair , I don't straighten it often , maybe about once or twice a month but my hair feels so dry! When I shower as soon as water touches it , it feels so horrible . It actually hurts to run my fingers through my hair because of how much texture it has. I cut my hair to my shoulders so it's short compared to how I had it but it still tangles and its frizzy and horrible . Oh and it falls out like crazy! In the shower , when its dry , when I brush it . Someone help me please LOL .