Sometimes mental illness feels like a sentient being. All the things you need to do to get better are exactly the things it tells you not to do. Go outside, be active, eat better, interact with people. It takes unbelievable effort to do any of them.
My parents made me get help in middle school. I was lucky to be able to get treatment, otherwise I doubt I would have through high school. I have made it to a good place in life, but I still struggle. Here is some limited insight from someone on the same battlefield.
First of all, you are worth it. You are worth everything. This is true even when you doubt it.
Second, take baby steps. Nobody can completely turn their life around overnight.
Sometimes I try to make a game of it, whatever my depression says I do the opposite. Don't take a shower? Okay, I'll take one. Stay up stupidly late when I have to get up early? Bed, here I come.
I have also found cognitive behavioral therapy helpful, and you don't even need a therapist to learn it. Lots of books and online resources.
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