Can i join the military as a social worker even though I take medication?

Yes, it'll stop you. You need to be off meds for a spell. Google DoDI 6130.03

Obviously, I don't know the specifics of your mental health. This is a decision that only you and your mental health provider can answer. But I will say that the military doesn't do well at adapting to the needs of an individual. If you don't adapt well, you will be cast aside in short order.

If you pressed me for an answer, I'd suggest you try anything other than military service.

https://www.operationmilitarykids.org/military-disqualifications-for-mental-health/

On the surface without knowing the details I am leaning towards you having slim to no odds in getting in with those pre-existing conditions. Very few of us on here are Doctors so only the Doctors and IN processing personnel are the ones who can deny your request but it will be difficult. The DOD is pretty strict with any pre-existing issues but those are some heavy duty issues you are dealing with. I know plenty of folks who have all been DQ'd with those individual issues and having all of them at once will be tough.

I seriously suggest you find another way of serving.