They did this study with mice, they placed a mouse alone with normal water and drugged water, the mouse immediately drank the poison until it unalived itself…
But then they made a safe space, added some toys like the hamster wheels where the mice can run and they put a few of them, they made a community. Put the same two waters, one normal and one with drugs, the consumption of the drugged water went from 100% to 0%
Humans need community and from my experience people are mostly unhappy because they cannot find where they belong. That’s where loneliness, anxiety, depression, sadness and other horrible stuff comes in, the same as the mouse, you’re alone so you’re coping with all the bad stuff.
So, my advice is to find someone who cares, a loving community or something, if you want to do it in person, go to a church or something, if you want to do it online there are specific apps that match you with someone of your interest and help you make friends, a new one in Australia is called Kuky I think I read about it in some news article or whatever. So yeah, having someone to talk to is the best way to go through the day. Other than that you can try with basic things as youtube or working out...