Can I handle it?

I don't know how much longer I can handle this job. I've only been there about 2 months but it seems like so much longer. It is very hard for me to work. I have really bad anxiety problems with panic attacks. Plus, I have schizo-affective disorder and major depression. I get very scared trying to handle working. I get scared that I won't be able to handle working anymore. And if that happens, then how would I make a living? I do live with my parents right now so I can save money on rent. I have tried applying for ssi but it hasn't worked so far. I even tried it with a lawyer and that didn't help. I am worried that I may have to try again if I can't handle this job. I know that everybody gets a little anxiety, but so many people out there really have no idea what it's like having a major anxiety disorder like people like me do. I know that there are plenty of people who do know though. I have had 30 plus job in my life and I am only 32. I have a very hard time working. It is very hard for me to smile on the job anymore. The customers would have to tell a joke or something to get me to smile, but even then i'm usually faking it. I have a hard time being happy with my life. I just don't know what to do anymore. I am not sure that I can handle working anymore. I have panic attacks on a regular basis too. It doesn't help my anxiety knowing that I am having so many problems with depression as well and with hearing voices and having tons of fears and delusions. My schizo-affective disorder is just a type of schizophrenia just in case you don't know. I really hope I can calm down soon and will end up being able to handle this job.