Everything you have said is screaming to me that you are depressed OP. Please call your GP first thing tomorrow, and get some help. If you feel you would struggle to tell them what's going on, just write it down, like you have here. Tell them that the man you live with is abusive, and ask them for help. I promise you, that once you have the right medication, you will begin to feel more able to cope, and ready to start taking back control from this arsehole, who has made you feel so worthless.
He's doubtless been telling you for a long time how useless you are, how stupid you are, etc., etc., but who is he to judge you? Who says that everything he says is right?
It's time to take back the power OP, and you can start by seeing your GP.
It doesn't sound like you have any children, and if that's the case, there is absolutely NO reason why you can't leave him, and take your dog with you, unless of course he's keeping you chained up, and if that's the case you should be contacting the police for help rather than wasting time posting on MN.
Many women have been where you are now OP, but with support, they have dug deep, and found the courage to take that difficult first step toward getting their lives back on track, and once you've taken the first step, it's easier to take the next, and the next, until you are finally free. I won't tell you it will happen tomorrow, and I won't tell you it will be easy, but it will be WORTH IT!
Don't worry, we're here to cheer you on, so come back as often as you need us. Sending you a reassuring hug.