My boyfriends mom is effing rude! What should I do?

Okay so I been with my boyfriend for 11 months I'm 19 years old and my boyfriend is 22, he has a mother from hell ! He is currently living with his parents they are super religious way mormon anyway his mom always gives me the vibe that she hates me she always tells me to get a job I want to tell her to eff off! I'm more concerned with my school and getting other things done and I told her that and she just won't stop one day my boyfriend spent the night at my house and she started crying and saying stuff that is not true about me like that I don't care about my life and I do! It's way unfair I not where I should be in life I'm a little behind but I'm still doing something with my life! And then yesterday my bf told her about the trip that we are going on to St George and she looks at me and says Ughhhhhhhhhh your not sleeping in the same tent and you need to go get a job she makes my self-esteem go down even more then it already is I mean I live in a **** house I effed up bad in my life and all she does is bring me down ! She thinks I'm taking advantage of her son or something he has 4 brothers in the family they are all old like 30 he is the baby she treats him like she needs to whip his butt and change his diaper my bf is not Mormon he drinks and we are sexually active but I just feel like ending our relationship cause of her she makes me feel like I'm not good enough for him what do I do?!?!?!?