Basically, 5 years ago my mother died giving birth to my little sister(whom i've had to pretty much raise myself) my dad started got really really depressed and started using heroin. Nowadays it's gotten so bad that he buys smack everyday than wonders how we can't afford groceries. He even shoots up in front of me, and my little sister, but when he starts doing it I immediately move her out the the room. I don't have the heart to tell my little sister that red the marks on daddies arms aren't actually tattoos.

My dad used to try to care for us, but now he's pretty much given up doing anything expect for heroin. It's gotten so bad that he doesn't pay any of our bills and that I had to get a job at abercrombie working pretty much all the time I'm not at school while my boyfriend takes care of my little sister(I've never actually told him what the situation we're in with my farther is but I think he gets it) just so we can stay fed. I have to do all the bills, help my sister with her homework, and provide for us both.

Sometimes(well pretty much all of the time) I wish I could just take my sister and go live somewhere else, she doesn't deserve what he's been putting us through, but even if he is a crap dad he still is my farther and I can't just adbandon him, my sister & I are all he has.
It's come to a point where I'm scared he's going to overdose in front of her or get killed by a dealer or something and I really need help. I would really appreciate if anyone could shed some light on what I need to do, thanks.

The answer to this one is, despite your insistences, quite simple. You do have to involve social services. You do have to tell the police. What you have been doing so far is so unbelievably brave, and amazing of you. But at the same time you can't do it all, by any means. You're juggling playing mother to your sister, a job, and then your studies. Add the deplorable actions of your father- who is mentally ill, although this is no real justification- and you run the risk of it all coming tumbling down around you. Every day that passes, you are facing a risk that could potentially cause a serious impact upon your, and your sister's lives. And I don't think you should have to take that risk.

You're a stronger person than so many others in this world, and I know should you report it then you will be very worried about losing your sister, but it is far less of a risk of losing her than you currently have to take day in day out nowadays. I was reading a law report earlier of a man who sold his three year old daughter to his dealer, who then raped and murdered her. Whilst this may not happen, and you may argue that your dad loves her still, this man loved his daughter. He just loved junk that little bit more.

Whats more, you deserve a childhood too. This isn't one.

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Emotions are naught to be tormented,
for they can kill a person in more ways than one.

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Shut the front door.
Holy mother of pearl  

You know all of this though, don't you? That's what I find incredible. You know the sort of life you're meant to have but don't, and you work your arse off to do all these things that are supposed to be provided for you already, and it sounds like you just get on with it. That's incredible, really it is. Thing is, you know yourself that you need to do something about this situation, and things need to change. I'm not entirely sure how it all works over there, but telling social services really is your best bet. You could do this by telling someone at school what's going on, and they could take it further for you, or you could have a chat with your boyfriend's parents (I actually think this is a nice idea, y'know) or you could do it directly yourself. As Blank black said, it's something you are going to have to do - for your benefit, of course, but for the benefit of your so very young little sister too. You both need this help. This is no life for you or her, and things need to change. Please, please think about taking that step. I understand it's hard and I understand that you won't really want to do it, but sometimes we have to do things that are really really hard. In order to make life a little easier for you all.

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and i wanted to ride with Yuri Gagarin
as he circled all around my world