I've found 3 things that have helped me deal with my depression/boredom:
1. Have things to look forward to:
Always, always find things to anticipate and look forward to in the short and long term. Whether it is something small, like a treat at the end of the day or something big like a vacation or short trip away.
2. Side projects & working towards self-employment.
Ultimately, the aim is to be the master of my own time. I no longer have to wake up at 8am because I HAVE to but because I (may) WANT to. This for me is so important. To be the master of my time. I'm 32 now, if I'm lucky to live to 70 you can say that I have about 14-20 years of productive time in me. I want to use it for myself.
3. Spirituality.
I know that this isn't for everyone. Personally, I find religion and spirituality helps me to cope with every day issues. It gives me strength where I might otherwise just find a gaping void of pointless-ness into which to fall.
I hope this helps you. As mentioned by another comment try to avoid alcohol. You won't find the answers you need a the bottom of a bottle.