I was also diagnosed with bi-polor, I worked in nursing for 14 years, it is very stressful, there is ALOT of heavy lifing on patient's. The demands are non-stop.  The process of obtaining your LPN or RN degree are brutal, you need at least a year of biology, you will need chemistry, anatomy & phsiology, plus many more specific classes.  I would look into the field of mental health and human services instead, because, you already know what the deal is and you understand it, you have experienced it yourself.  It is an easier feild of study if you like pychology stuff.  There are a variety of jobs you will be able to do, such as work in a group home (there are many different kinds), work at a pychiatric hospital and many other jobs. I don't want to discourage you in any way, you can do it.  I bet you would love college it is great!!  Go for it now while you are still young.  You have nothing to lose by trying.  Good luck.. From Janice