TODDLER ALWAYS ANGRY AND SCREAMING !!!!!!

I have a 3and half toddler girl that driveS me CRAZY!!!!

SHE IS ALWAYS ANGRY AT EVERYONE AND SCREAMS AT EVERYTHING!!! She wants everything her way.

For example she ask for phone. I say no. She screams n asks million times. Never understands what's NO.

She just runs around house screaming her lungs out cuz my cousin like touched her or she sees something she likes n cousin take it. She will scream and when I try to calm her . Tell her please ask . She just screams , hits me never listens . I take her time out. She usually calms down but min later shes screaming aggressive again. She has big attitude n doesnt do what u say except after an hour.

She always been angry since she was like 2 but now the older the worst!!!! I am pregnant now and idk how to deal with her. I sometimes get sooooo mad spank her n she never stops just screams so it dnt work . N I always regret it later n cry cuz I feel like she taking all my energy . I'm tired . I feel like she is different then all kids I meet . She never listens EVER

I live next door to parents so I'm always there n usually her crazy tenturms r there cuz she n cousin dnt agree. So ima try to stop going n see if she changes .