Take one step at a time, ask yourself if there is anything that can give you relief right now, watching a film, going for a walk, eating a bar of chocolate etc. Do some reality checks too - have you really got any reason to be depressed, or are you basically young, fit and healthy with good opportunities in life? I suffered from a depression myself, and even if I know tablets and stuff have helped a friend, they made things far worse to me. It was not so much about depression as about other stuff that really needed to change, for example family situation. And sometimes you can get caught by some bad feelings as in a vicious circle. It is not about pulling yourself together, though, but all about congratulating yourself and treat yourself nicely. If you seek a counsellor, be sure that you gain from the support and not only put on a workload.