Hey, first things first: DO NOT DRINK TO CURE YOUR PROBLEMS!
Sorry I wrote that in caps I just don't want you making the same mistake I did, seriously, it might make you feel good now but it'll cause more problems than you want. The question is do you want to **** your life away? Cause once you start down the alcohol route it's hard to come back.
It sounds like things are really hard for you at the moment. Tablets do work believe me, the first few weeks can be hard, it can make you suicidal, I'm not sure about the biology of it because I'm not a scientist, but after about 4-6 weeks it will not exactly lift your mood but make you feel stable, like you can do every day things. Tablets don't make you happy: that's up to you. If you don't feel the tablets are working go to your doctor and up your dose, if it still doesn't work ask them to put you on something else. It's trial and error.
I know the temptation to sleep all day is hard, and feeling tired is most likely part of the depression, but if you get up and do something I bet you'd feel a lot better. I'm not saying do somethime massive like run a marathon. Like read a book, watch TV or a dvd. I spend my days reading and watching box sets cause all though it isn't very productive it's keeping me active.
Don't end up like my house mate. She does absoulutely nothing but sleep and that's all she's done for about 5 years. It's sad.
Sometimes leaving home is good for a person. Sometimes it's not. I walked out in 2007 from my dads and ended up staying at my cousins and it was a nightmare. Never again.
What I'm trying to say is hang in there, the tablets will make you feel stable but if you want to start feeling optomistic and positive you have to work at it. But don't try and do anything too fast, take it slow and allow yourself time to recover.