Is this reason enough to leave a job?

I work with addicts and it’s one lady that do not like me. Like they’re always constantly ganging up on me. Lying to other staff members and tarnishing my rep. I have issue with guys when they’re admitted they ask e my age, am I married, do I have a man? And so forth. I ask them how does knowing that is going to help with their recovery, then all of a sudden they get angry and upset. Last night, it was a guy how cursed e out for not taking them on a smoke break every hour( taking clients to smoke is not in y job discripition) plus it aggregates my asthma. My management does nothing plus since this lady has everyone against me- I look like the bad guy. Some times I’m in tears how they speak to me. They have me doing two jobs instead of hiring someone else. I cry just about everyday I go to work. I’m constantly thinking am I the issue? Because they have nothing negative to say of the other nurses but again, there’s adequate staff to take them smoking when she’s there. Any advice? I was trying to. Stay until a year which is two months but it’s so terrible I want to give my two weeks and leave.