If my therapist tells me i wont find any better than my boyfriend now and that i should stay with him should i listen?

I feel like my mom and family and therapist are only telling me to stay with him so i can keep complaining. Im not happy. Sex is trash with him. He cant keep a job. He never takes me out or remembers important holidays or birthdays... he ignores them to piss me off. I pay for literally everything, give him gifts. Im about to fall all the way back.
I really want to go my own seperate way but we share a child together and right now i cant raise my son by myself. I have a disability and it really hurts me trying to take care of my son. What would you do?