I guess you attended counselling sessions before and not know the serious of your case, I would suggest that you go for those counselling sessions. If you want to fight your way out from being depressed, then I think there is something you can do to help yourself. A little recognition, be it from yourself or others, can boost your self-esteem and make you feel better about yourself. When you feel good about yourself, you will be confident in things and therefore, would not be so easily slip into depression when you think that there is something wrong in the situation. It will make you want to be over things instead of under.
Goodluck.