Scared shitless

So, I’m new to my job about 2 months in….. just seen this today as I no longer live with my mother because I was made homeless, other drama that I’m not going to go into anyway, my boss doesn’t seem to like me at all and once threatened to sack me after me having my phone out and leaning on the till (I work in retail) when customers aren’t around and generally just picking on me which annoys me cause other employees he likes have their phones out and aren’t told off for it, anyway I feel very picked on, it’s a very hostile environment when my boss is around and also one other employee who is a bitch to me for no reason at all too, anyway, just seen this and yes my mother is opening my confidential mail I’m not happy about that at all but she is, should I shit myself? I’m homeless living with my boyfriend and his family, I’m in £1000 debt from my ex because I didn’t know he put out a claim in my name and didn’t pay back, I’m in a lot of stress I don’t need this, I just got out of a mental hospital for attempting my own life and honestly this is the last thing I need especially with what’s going on…… either god hates me or is testing me.