How do I ignore my boyfriend and just leave

Yesterday my child’s father took me too a appointment for my thyroid.. afterwards we hung out but got into a argument because he said that I give out money to my family too much and that he wants to manage my money. I said no and that I think he just wants to manage so when he doesn’t have any he can get mines. About 20 mins pass, im talking to my brother on the phone and I hear him on the side making slick remarks and mad about me saying he wanted my money. After I get off the phone he brings it up and doesn’t want to hang out anymore, I get in my feelings because we are grown and something so simple could be worked out and he said only way it could is if I made it up by giving him some money.. I said no cause who tf do you think you are to say I have to pay you in order for us to get back cool and he has been doing this for a long time and I just give in but I’m sick of that shit now I was 17 and he was 35 so I was very gullible but I’m 21 now and I’m over it. I get out the car and walk to McDonald’s he comes in and punches me in my face and demands I get back in the car. We are outside for about a hour or 2 going back and fourth.. I just wanna end the arguing and us get back on good terms so I say I just hand him $40 he says no he’s not accepting that and wants more I’m like no that’s just not happening. Fast forward to today he calls me we are fine then randomly a hour ago he called like “bitch are you going to give me $200 if not Im not fucking with you until then” I get slick he says now “300” please how do I just move on I want to get out of this relationship NOW it’s just so hard to let get for some reason, I seriously do dislike him but I love him at the same time when I try to let go my brain is telling me no I’m miserable and not happy I just need to find the strength to leave . I’ve been with him since I was a teenager and no I’m just so attached I don’t know how to just move on.. when I tell him I’m done he doesn’t even believe me cause he knows im attached.. any words of wisdom or advice ?

EDIT: I filed a restraining order today but we had a no contact order before and he did not care he violated it and would take my phone when he was around so that I couldn’t call