As much as you may find life hard now, there's always the possibility of amazing things happening in the future. When you're having a difficult time it may seem like there's no light at the end of the tunnel, but there will be once you get there, you just have to make it to the end of the tunnel. Take pleasure in the small things in life, if the big things are too hard to find happiness in; play some video games, sink a couple beers while watching your favourite show, read a book, hire a hooker (if that's you're kinda thing lol) the important thing to take out of it is find happiness even if it's in small places. Keep doing this until you find the big parts of your life make you happy again, and don't worry, because it will happen. Most people at some point go through dark times in their life, you just have to push through.