Starting a new job for anyone is nerve wracking in general. But in a bipolar episode it can magnify the intensity of the feelings. I would take that into consideration so be gentle with yourself knowing that this time should pass. Easier said than done, I know. But I've been in similar situations and knowing that I have to support myself, I try and work it out with my employer for some flexibility if possible so that I can do the best at my job. Maybe a specific schedule may be best for you...? I hope you are able to resolve this issue. Please take care of yourself.