Is it normal for one side of my hair to be curly and the other straight??

Everytime i try to style my hair, or do something with it, or even wake up in the morning, the right side of my head is just so curly. My hair sticks out and curls up but then the left side is just straight. Ive never even really had a permanent hair style ive just let it do whatever cause im ready to give up on it. If it was completely straight or completely curly it'd be fine. But its Both on Both sides. Is this Normal and what can i do to fix it? And just sayin i also have a ugly ass cowlick on the front right side of my forehead....i know my hair sucks.