I feel so broken.

My daughter is ten months and I have to go back to work. I love my career but hate my job. My coworkers are so mean to me and my boss gives my one coworker everything she wants. I get paid $2 below average in my field and yet she gets paid well above. It's not even about the money..but im not happy. I feel like I can't do my job properly because I always feel self conscious. They all get along and gang up on me. It's a really toxic environment. My anxiety is through the roof just thinking about going back. My husband works long hours so the only reason I stay is because the hours work good for us. He thinks I should tough it out until the fall. I go back to work and then we're moving into our first home. It's been a while since I've worked (18 months) so I feel like my skills need to be upgraded. Should I go back for a few months? Should I look for a new job asap? Help!!! 😰 I hate leaving my babies and leaving them for a crappy job is just the icing on the cake.