Has anyone diagnosed with PP depression been prescribed medicine that actually helps?

I've had problems with depression my whole life. I've never been diagnosed or given anything. I do a good job of getting through it on my own. But this feels pretty heavy and I'm tired of fighting to feel happy all the time. I am happy, so happy, I just wish it felt like it. Has anyone found relief? What were you given?

I think not being able to exercise, not seeing the sun, and not eating the best are definitely contributing. So I dont know if I should wait this out, because those things will change and medicine isnt a cure all anyways or if it's worth looking into.