Loosing my job....stressed out.....planning a wedding

Ladies for the past month 1/2 ive been stressed and have had alot of anxiety...i made a mistake at work and since then my boss has been treating me like shit.... he has completely taken away all my job duities and given it to someone else my hours were cut in half and i know longer know what to do. Ive applied to other places but im just afraid ive never really struggled financially but now i am and its giving my bad anxiety and my next check will be low but i plan on making a pmt to my car a month in advance bc idk how much longer my boss will keep me. I cry almost everyday bc i just keep thinking what am i going to do. My fiancé and i are planning our wedding also so it just adds more to my plate....please pray for me i cant sleep i cant stop crying im being treated unfairly ive been at this job for 5 years and it seems like Everytime we get someone new my boss waits for me to screw up so that he could give them my work.