<human>: Provide a brief overview of the text.

So here's the scoop: ever since my mom divorced my dad (she initiated it) she has been using me for her advantage. She got money from the divorce settlement yet stole my childhood savings in highshool, hacked into my bank account numerous times in college, and has scammed me out of money via fake checks posed as gifts and through money transfers a handful of times since then. She never has a consistent phone number and blames it on my end - as if my phone plan is inconsistent - as to why I cannot make complete calls to her. She had the nerve to tell me if I want her to have a consistent number I should add her on my phone plan, and that she cannot afford long distance calling or having internet. This is a lie as she has told me and other family members shes traveling europe although she's lived there off and on for 10 years. I reached my breaking point to where just talking to her, or even seeing a call or message from her gives me anxiety.   I've expressed to her my emotions and my side but she dismisses my feelings. Recently, without warning or permission, she messaged me via facebook telling me she's coming to visit and expects to stay at my apartment shared with 3 roommates while she's in town. She hasn't called me since to even talk about details (probably knowing my answer will be no). Luckily, she doesn't know my address...
<bot>: How do I cut her off without losing a mother? How have you dealt with people close to you taking advantage of you?