It's been months and months since I posted here.... I doubt ayone remembers me

My daughter's name is Molly Elizabeth, if that ring's a bell to anyone, she's almost 7 months old now. I joined here over a year ago, I was just never very active...
Well a little update for those of you who remember me... I'm 20, I have a daughter, I put off going to college this year so I could be with her... I've been going through a bit of a tough time lately, my bf and I broke up. We were together a nice while before I got pregnant, but about two months ago everything went sour...
Before I had my daughter both of us were pretty big partyers... Out every weekend, getting drunk and high... We both worked and lived together, and when I found out I was pregnant, we both quit everything and saved up money for the baby... It was going good up until about 2 months ago when my boyfriend stopped ever having any money, lost his job for stealing... I mean this was someone I loved dearly, the father of my child... He just started acting like a lunatic, being really controlling and never making any sense.
I found out he was using cocaine again...we got in a fight one night and he hit me.... I mean I never thought this would happen, and I sure as hell don't want my daughter growing up in an environment like that... Lol I don't know why I'm posting all this, I doubt anyone even remebers me, I just need to get all this off my chest...
So for the last month now, Molly and I have been living in our own apartment and my ex-bf doesn't even know where... This isn't the guy I fell in love with at all... he's unstable, and scary. He keeps calling my cell phone at all hours of the night, and I just don't know what to do anymore. I'm supposed to be starting a new job soon, but I don't want to leave my daughter anywhere without me.... I'm just so scared, I never thought this would happen...
I'm so sorry for the long post ladies, but I know you all give great advice, and right now I need it more than ever...

Thanks in advance for the replies