I have to be honest, sometimes when you are at the height of depression or in a manic stage of it you need the combo both meds and a therapist to balance out and pull yourself out of that funk. I still see my therapist every week on a tele health app that the practice has since I can’t see her in person due to Rona. It’s been good for coping strategies.
If you’re having a gain or loss of weight, that can affect how your meds work too. Work with your doctor on that part if you’ve noticed a fluctuation. Sometimes a strict routine with exercise and healthy eating helps as far as function. I hope our advice helps

A lot of antidepressants are notorious for having weight gain as a side effect. When I'm on them I have to make extra effort to get up and outside, do yoga and eat healthy. It really helps when I have a strict routine when I'm in a funk so I know what needs to be done instead of having to think.

Also definitely look into therapy. That may help a lot

Tell your doctor about your meds. Sometimes it takes a few tries to find the right one. Hang in there!

Are you in therapy?
Sometimes therapy helps a ton.