Well, that's a really hard question to answer. I've been struggling with depression for.. Well, as long as I can remember. When I was three, my mother had died of Ovarian Cancer and my dad had remarried, but ended up remarrying to an abusive stepmother. And after years, my depression got stronger and stronger, and each year I wanted to commit suicide. I wanted more than anything for my life to be over. My parents were abusive, hell, my dad even encouraged me to kill myself one time and my stepmother threatened to kill me herself, and last year I actually tried to do it. But I talked myself out of it and got the help I needed. And my parents actually ended up disowning me, and I moved in with my best friend at the age of 17.
What I can only recommend, man, is a change in scenery. If you're feeling down in the dumps, there's something you're lacking. Something in your life you need but you're not getting. Whether it be love, money, attention, kindness, or even social interaction, there's something you need. You need to find something to keep yourself busy, around new people, and have your loved ones support you the entire way. Find a hobby, but do something you enjoy and can get recognized for. That's one of the huge reasons why I love YouTube, because I get to meet and play games with new people, show off my passions, vent in front of a camera, and it's really therapeutic. I don't know you well enough to offer advice, but I wish you the best of luck. :)