What do you do when you feel depressed?

Lately some people have been bullying and spreading rumors about me which is making my life very hard. I seek out for help but I was thrown under the bus by the only person that could help me, I feel so depressed and dead and all I want to do is sleep, I've lost my appetite and I have to force myself to eat. I tried to remember the last time I was happy and recount the happy moments, my heart hurts, I feel drained physically, mentally, spiritually. I want to ki.. myself too.
What do you do when you feel depressed?
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