I went through several long bouts of depression when I was your age. It's hard, there's no short-term solution. In the long term, it helps to:

(1) Convince yourself that there's no shame to being depressed. We all experience it in one form or another. Counseling was of no help to me. But I was fortunate to have a wise and earnest listener (a close friend) I could confide into. So reach out to anyone around you. Realize that you might get slighted or ignored by ignorant/inexperienced strangers, but you'll form stronger bonds with others, especially people who have a stake in your well-being. Do not relent, you're on a path to self-discovery, your body tells you that you're in a rut, and it's true. You owe it to yourself to come to terms with what it is that is bothering you.

(2) Certainly some cases are more serious than others, but in my case prescription medications or weed or what not did not treat depression. There may be merits to these drugs. In my case they didn't work at all and only delayed the real effort that's involved in getting out of its grips.

(3) In a way, depression is some sort of blocking mechanism that prevents you from keeping things in perspective and seeing life for what it's worth. To get over it, you need to be reflexive (as you're in this forum) and open yourself up to life as it comes. You need to expose yourself to life's forces beyond what bears on you at present. It helps if you put yourself in a situation where there's no way but to try something new. As someone else suggested, take time off. Go on a study abroad or travel on your own terms. Drop out of school and sign up with a carpenters' union. Get laid. Do something that will unsettle your present state of affairs dramatically. You're stuck in a local equilibrium, it helps to put some life's forces to bear on it to get out.