Getting away from a toxic family

Hi, I'm a 25 year old single mom to a 3 year old son, we live with my parents, but it's gotten to a point that it's very toxic, my dad always tries to pick a fight with me, yelling at me and saying mean things to me, in front of my kid and making me feel like nothing I do is okay or enough, and I'm done feeling like I'm not good enough, and don't want my kid to grow up thinking I'm never going to be good enough, because my father says so, this is not an environment I want my kid to grow up in. This has been going for 3 years, and I can't take it anymore, I want to go away to a place I can raise my kid in a happy and non toxic place. My father of course won't help me, since he controls my money and I'm getting less and less, and moving out it's not an option because of this money problem.

So I ask for your help in this time of desperation and need, for my mental health and my child childhood, since this is getting ugly REAL quick :(