u/bayotiic

I've worked at Citi as a universal banker for about 10 months now. Our branch is one of the busiest in our area, we see lots of daily traffic. We had 4 UBs on the teller line when I first started, and at this point we are down to only two. Our Head UB was let go without finding a replacement, and because of that, they transferred the vault and all of her responsibilities onto me. Shortly after that, one of the part-time UBs quit, and just one week after that, our manager quit lol. I have been holding the vault for about 3 months now and working on average 43+ hours a week. There is absolutely no work/life balance here. I am tired, stressed, and I see no light at the end of the tunnel. Would they be able to give me a raise with all this extra work I've been doing? Or should I just quit as well and find a new job altogether? I don't mean for this to sound like I'm complaining but I'm extremely tired and need some help on what to do.