My last attempt was about 10 years ago. It started to dramatically improve about a year later, then another year saw more improvement, and so on. Eventually I got on the right antidepressant and honestly my life is pretty freaking good now. Hell, I'm about to be a dad.
You could not have convinced me it would get better a decade ago.
Dumb luck saved me. Please don't be like me back then.
I would look at resources in your area. If there is a prevention hotline where you live, they can usually offer better advice than I can.
Outside of that, what really helped me was accepting that my brain was trying to attack itself, and that I needed to be aware it was fucking with my perception of reality.
If your brain is doing bad chemistry, sometimes meds are the only thing that can help. I forget to take mine sometimes, and when I do it is usually a week before the old feelings start coming back. Talk to a doctor.
If you’re thinking about suicide, are worried about a friend or loved one, or would like emotional support, the 988 Lifeline network is available 24/7 across the United States.
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