I feel much like you describe, too. A few thoughts:

"Doctor, heal thyself." - Can you really be much help to anybody if you don't do what you need to do to take care of yourself? Clinical depression isn't weakness, it's illness. I say this as a Master of Social Work student with Major Depressive Disorder (recurrent, currently moderate) struggling along too.

Meds aren't a big deal. If you hate them you can get off again, but they're worth trying. (Just don't ditch them when you start feeling better!)

Check out the natural influences on mood - exercise, healthy diet, adequate sleep, sun exposure, giving through volunteering, enjoyable activities/fun and self-pampering. Difficult to maintain in balance, but stuff to consider. Might try being accountable to your therapist as to whether you engage in these, try finding groups to do them in - don't know about you, but getting over to work out at any ol' time doesn't happen too often for me. Joining a class with a set schedule is more do-able. And track what you do in those areas - remembering how much you slept or how much healthy food you consumed last week can be tough, but tracking it lets you see patterns and trouble areas.

No relationship advice to offer. I've never had friends, beats me why.