I have been dealing with thing since 8 years now.
I have tried to escape this with drugs/alcohol but that won't help.
I can tell you everything that I've done but that won't be of any help to you.
What I think is, there is no hard coded way to deal with this issue. Understand your situation and keep fighting and there will come a time when something will push you over the brink. Honestly, if you ask me I really don't know what thing in particular helped me curb my depression, things started to change over time.
However, eating healthy food, reading books and exercise is a must.