Sorry to hear you are feeling low.
What helps best for me is also exercise, which for me is a lot of walking as I walk to work and am walking at work all day but then I also make time on my days off to get in some walking.
I also listen to a guided meditation on youtube for clearing subconscious blockages. I am not a meditation kind of person but this works for me. I put on headphones and listen to this man’s voice and I can get at least an hour of solid sleep that is peaceful. I wake up feeling refreshed.
Another thing I do is when I am feeling low, I help my elderly relative as much as I can, ask them how they are doing and what needs to be done. Helping others makes us feel better at the same time as we are being productive.
It is tempting to eat comfort food, but I try as best I can (although I don’t always succeed) to eat even more healthy food when I’m feeling low. Getting sleep is good, although too much can be problematic. Eight to nine hours is OK.
Visiting or talking with friends or family who care about you helps, too. Let them know you aren’t feeling that great and you may find they will have caring words and actions that will make you feel better.
Did the antidepressant help you? Would it be something you look forward to taking again? I have never been on meds, myself, just tough it out when I feel depressed, but there can be times when that is the only thing that works. I hope you find relief. Let us know how you are doing.