I've been pretty depressed lately, what are some ways to get out of my funk?

It's somewhat to do with my self image. I'm one year postpartum and struggling to lose weight. I keep falling off track and yo yoing the same ten lbs for months. I use to lose weight so easily when I was younger. I'm trying to not let it get to me. I don't have a supportive partner so that's not helping. Also not feeling like I have any identity anymore after kids. My manudane routine is killing me and I feel guilty about that.
I've been pretty depressed lately, what are some ways to get out of my funk?
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