So it sounds like you've been living in this guy's father's house. If it weren't for the father having a house, would this boyfriend of yours even have a roof over his head? You need to not be relying on this guy and his dad for security. Even his dad is hostile to you. If that room comes through, please grab it and leave. Then don't look back.

He may try to discourage you from leaving. He may show up at the place you move to. You'll have to cut the cord. Consider not even telling him where you will be staying.

A lot of your feelings of unworthiness come from having no family and no one else to receive love and acceptance from. You're not getting that from him either. I'll bet he doesn't have a lot of friends. Stay with him, and you won't either. You are too young to give up on life's possibilities and to accept this miserable existence. Be glad you don't have a baby tying you down. Make a break for it.

Once you're out of where you're at, a lot can happen that you have no expectation of. Some of what will happen will be rough, but that's okay. Good things will also happen. For awhile, you won't know what tomorrow will bring. You do know what staying there will bring - it'll just be more of the same. Sometimes you have to throw caution to the wind and decide "I'm out of here. I'm not sure what's next for me, but it won't be more of this!" That's how you open the door to other possibilities. You have to start being your own best friend. Saying "I don't deserve better." is a form of mental laziness. It's an excuse to do nothing. It's not true humility, which is a virtue. Humility involves realizing that you have much to learn and having respect for others. It's not about turning yourself into a doormat. I hope you'll post again about how things are going. Life can be generous to those who refuse to give up. There's no guarantees, except for one: Keep betting on a losing hand, and you will keep losing.