Hello, and welcome to Allnurses! Perhaps I can help you out a little bit.
I've been a nurse for 16 years and am bipolar 1. Although I wasn't diagnosed until a couple of years ago, I've struggled all my life and had to work twice as hard as a "normal" person for everything I've ever had, in almost every area of life. My illness is well-managed now, but my career was almost ruined before I got some control over the bipolar. I've lost jobs, had breakdowns, made HUGE errors in judgment, and alienated people. I have trouble focusing/concentrating, tend to become easily overstimulated and irritable, can't handle rapidly shifting priorities, and depending on my mood, can be either withdrawn or intrusive.
But I'm still a nurse. I take medications and see my psychiatrist regularly, plus I try to maintain other good health habits. And for the most part, I do pretty well now that I know what my limitations are and stick to them.
It CAN be done. Bipolar people CAN be nurses. You've made it this far; it just sounds like your illness is not well-managed and that you need to fine-tune your medication program, if you have one, and/or be re-evaluated to make sure you're not dealing with another psychiatric illness as well as the BP. Please see your mental health professional ASAP, or if you don't have one, find one! If money is an issue, call your county health clinic to see if they offer mental health services; if you're having trouble affording medications, there are also prescription programs that help provide psychiatric drugs at low or no cost.
Make sure you are taking good care of your physical health as well. Nursing school is very stressful, as you know, and you need to eat well, find some kind of exercise that you'll do regularly, and especially
get plenty of rest and sleep. You're probably aware that as sleep goes, so goes bipolar---too much can signal depression, and too little is often linked to manic episodes.
Keep coming back here to Allnurses, as well. There is a sizable number of nurses here with mental illness who are more than willing to share what helps them and give each other support during tough times. You'll find very little, if any judgmentalism here as we have done quite a lot of education on MH issues.
Wishing you the best.