OP I'll be praying for you and your girlfriend and others who might also want to escape but don't know how.
Don't worry much about the future now. Worry about yourself and God. Pray to God, confess your sins, and ask God for help with the sins you're having difficulty, if any.
Then ask god for your girlfriend too. If it's God's will to free her at this moment, she'll be freed too. But don't worry if it doesn't happen at this time, just pray for her.
As for going to the police I believe it would be a waste of time because they probably control the police too.
I suggest you to look at people who have gone through the same situation you're going thru. Watch some of the Doc Marquis' interviews. Youtube has many of them, but if you do a google search for doc marquis interview you'll find others in radio websites/webradios. Usually in the beggining of the interview he talks about how he left the illuminati, and what happened thereafter.
Basically, he says daemons can't do anything born again christians, they just refuse and state they can't touch us. So don't worry about rituals: god protects us.
They have other means tough, but they are on their own (they can't count on daemons and rituals). Doc Marquis said he had many attempts on his life but all failed. At some point he gave up going to the police to make a registering of those attempts. He says they can't kill us unless it's God's appointed time for us. That is: God has the final decision on when/how we leave this world.
As for your hunger and other immediate needs, I suggest you go to a small, local and biblical church and ask for help and food. At least they'll give you some food, even if they can't help with other things at a first moment. If you feel it's a good church, go to their church meetings, and if you fell confident on them, and feel it's needed, tell the pastor and some of the brothers what's happening to you, maybe just a little so they can have and idea and understand a little about your situation, doesn't need to be in detail. Maybe you won't even need much explaining, since people nowadays are more aware of these things than before because of the internet. But pray about this before and only do that if you feel it's the right thing to do, the right place, the right time and they're the right people for you to talk about this. That is: only tell someone if you really feel ok telling someone, after praying about it and having assurance about it. Well, that's what I'd do if I were in a situation like yours.
Well OP, i'll be praying. God bless you, may God bless them too so they can see they're being deceived by Satan. I hope you are helped soon. Don't give up.