Well, it really all depends on the person. Different, specific things make one happy and diverts one's attention from depression. However, one thing that everyone should learn is that emotions are only mental. They don't control your mind. Ты control your mind. So, Ты can choose to not be depressed, but it all depends on your mental state of mind. If Ты find it difficult to get rid of this depression, then perhaps Музыка would best suit your need.