Natural anti-depressants?

Hello, I’m a young adult who’s on a waiting list for an appointment with a psychiatrist. My appointment is on August 20, but I feel like I really can’t wait that long. Unfortunately there is no way to speed up the waiting list.

I show strong signs of having BDD (body dysmorphic disorder) and depression. I’m undergoing an episode of a particularly low mood. The thing is, I really want to get stuff done this summer. Get a job, study, read books, exercise, and so on but I can’t muster up the willpower to do it because of my state. I was wondering if there are any natural remedies to these episodes of low moods?

Thank you for any help (: