Help! New job, extremely hostile work environment but I need the experience.

Hey guys,

I graduated in May from a very large state school with a decent business school. My major is finance and my minor is real estate and I have had one internship with a financial planning firm. My passion is commercial real estate and I hope to lock in an analyst position at some point. I had sine interviews over summer but no luck. Anyway, I join zip recruiter and 1 click apply to a ton of jobs. I had a person call me back and ended up interviewing once; basically, was shortly offered the position and immediately accepted. The job is real estate oriented, it is trying to sell this guy’s pre-developed land and do administrative work.
The job is basically in a very rural area in this guy’s boat house and it has about 5 office rooms in it. I work with 2 50-year-olds and then there is the boss. Both my co-workers have significantly less education than me. I think as this is the countryside area and I imagine finding talent is hard. Let me just address him as Bob. So anyway, I show up the first day in a suit. Bob takes me into a room that is now my office and it smells like dog piss which I have gotten used to by now. By the way, he had several animals that roam the offices (cats, dogs) which are annoying as hell. Also, I never got an introduction to my coworkers or shown around the office so I just took the liberty of doing such myself.
Bob has me emailing these developers all day trying to sell his commercially zoned land. He also had me build a cost analysis excel model which he never even looked at. Since my first hour of working, he gave me very little direction and told me to research such developers and email them all. I did and it is incredibly boring, let me tell you. While I am doing this, I hear him start screaming at one of the coworkers about this and that. 15 minutes later I hear more screaming, at the other coworker. All day is just him constantly yelling and micromanaging us. It makes me nervous to be in such a work environment. Bob is a retired lawyer described as a workaholic by my co-workers. Bob is certainly a very poor leader. Every time he talks he acts as if he is furiously rushing and on a deadline, I am not sure if that is his way of trying to motivate us. It has been a week now and my coworkers say I have yet to see the worst of him. At one point, he cussed my coworker out and now I am uncomfortable approaching him. I asked him a question about a zoning law and his response was him yelling at me. The good thing is he gives me the grunt work and assigned all the important stuff to the other two that I don’t get yelled at too much. The worst part about this is I get off very late. I work from 9-7:30 or 8 pm. Which I guess is my fault for not asking about the hours before I was hired. Also, nobody leaves the building (like to eat lunch) and we must eat while working. It seems as if my coworkers do everything they can to avoid one of Bob's outbursts. No one in the office even has just a friendly conversation, just silence. I heard Xmas break is only 3 days too.
This is my first salaried job and I make 40k with a degree. It is not worth it for me but I don’t have any other Real estate experience. I also have student loans. I feel this job will be critical on my resume if I want to find an analyst job. Because of this, my plan is to stick it out, but it is very difficult for me to work in this toxic environment. Like I said It has only been 1 week. Right now, I am applying for other jobs but I do feel trapped in this for the time being. My plan is to at least work for 3 months, pay as much student loans off as I can, remain on good terms with Bob so if people call for a reference he will have only good to say about me. Can you guys give me some advice, please! I still don’t know what to think. Thank you so much for reading this!