[ Family ] Open Question : My mother is living with me. HELP!?

Help me with this situation: I am 27 years old and I am trying to get my life together. I recently lost 85 lbs and I have about 25-35 more to go. I am more confident, healthier and have realigned my goals in life and I'm going after everything i feel I allowed myself to miss out on. I'm trying to win myself the life i deserve. Part of that is moving away from home. I want to move to a different city and away from home and yes, my mother and family (at least for a while) because they can be a drain. I know that I will have to save money in order to do that, and as soon as I set my plans out, my mom showed up at my door with her bags. No call, nothing. She's down on her luck right now but she brought it on herself I believe. She moved down here WITHOUT a plan. She was staying with a friend before she came here, but she was in a different city doing fine. Somehow she ended up where I am, and now in my house. Just so you know where I'm coming from, a little back ground. My mom doesn't make wise decisions. She went to prison for a year for writing bad checks. When I went to college, she got 2 credit cards in my name and DIDN'T tell me. A cell phone too ($700 bill). All on my credit. I had to pay $400 to get my power bill turned on in this current apartment and that's because i DIDN'T KNOW she had her last place's power in MY NAME and left a bad balance that I had to pay. Long story short, she's done me wrong financially and i'll never do that to my children. Then she turns around and needs me now that she doesn't have a place to stay. I'm trying to save money to move and with her being here, it's hard because the power bills are going up, she got a virus on my laptop and I had to throw money away to get that off. And with this, I haven't been able to save any money toward my goal of moving away. She said that she would only be here for a month but it's going to turn into two and I simply don't want her to get comfortable. I love my mother, but she made bad choices in life and I'm trying not to make the same. I feel as though she is a drain on my finances and my morale. And I resent her for having done all the things she did to my credit. I don't feel this is fair and I feel like reminding of what she said she would do. Which is move out and go to a hotel when she got paid, which is tomorrow. I would feel guilty for essentially putting my mom out of my house, but she's doing me more harm being here than good. There will be a rift in our relationship if she stays because I cannot stomach her being here much longer ESPECIALLY if I feel like it's impeding my goals. (Not to mention I don't want to be a 27 year old who's mom lives with them! Do you know what that does to one's social life??) If she is forced to NOT use me or anyone else, she will be forced to do for herself. i don't want her money, I just want her to move. I need some advice and your thoughts. Am I being too harsh on her. Should I let her stay here no matter what because she's my mom? Should I ask her to keep her word and go to a hotel? I just am almost in panic mode because I'm starting to think she's unintentionally sabotaging my plans of moving away from here.