Every time I think about this, I remark to myself on how rare it is unless something traumatic has happened (breakup, death in the family, etc.). It gets better with time and acceptance of who, what, and where you are. Your situation will take a lot more time just because of the particulars of your life right now. Give it time, take walks OUTSIDE, and make sure that you focus on the here and now rather than the past or the future. The more that you really actively work to address the ways in which the depression can get you, the better it gets.
Protip: Meditation FTW.