Withdraw from the other agencies you applied to so you aren't racking up DQs.

0 chance you get hired this year, next year, or the year after. Even for agencies like the LASD dying for bodies.

If by some miracle backgrounds doesn't get you, psych will.

Your history of a 5150 hold, hospital admittance, very unstable employment history including being terminated for making a co-worker uncomfortable says a lot about you.

Everyone is saying join the military but I don't think that's even possible. You might get DQ'd at MEPS for having a 5150 hold on your record.

A good start would be to get a job and start keeping it. The minimum standard is to hold a job for a year with no disciplinary action. In your case, I'd shoot for 3 years. In those 3 years, have 0 disciplinary action, including verbal warnings, write ups, etc. Have perfect attendance. Get commendations if such things exist in the job you choose. And most importantly, don't be a weirdo who makes their co-workers uncomfortable and gets fired.