You just need a good hobby. Explore your interests, go deeper with the things that intrigue or motivate you. Usually when people start feeling depressed it is because they think they are missing out on something great that other people are doing but the truth is, those people probably arent doing that much either. What is actually causing you depression is that you are denying your own personal enjoyments. In other words you need to refocus on the things that inspire you. Maybe it is, mechanical, athletic,artistic, creative, or something else entirely but you need to get back into doing those things. Do not rely on other people for entertainment or else you will be very disappointed.