2 year old doesnt talk.. 🤔

my son is 2 and he doesnt speak he only baby talks.. he points at things when he wamts them and he has only said daddy and cookie just 1 time! in encourage words everyday, read , sing, use sign language to help him out but hes just not interested.. he does scream when hes mad or doesnt get his way! and says no with his head when i ask him to do something like sit or be quiet. has any parent experience this with their child at that age? what did you do? did you take your child to speech therapy? hes a smart boy just dont know what to do..