It sounds like you are dealing with a lot, btwn adjusting to college and trying to stabilize your bipolar? symptoms. Different meds may take different amounts of time to work as intended. Sometimes they don't work well. Hopefully you are in regular contact with your pdoc to determine if adjustments are needed. S/he needs to know if you are having suicidal thoughts anyways. Also, if you are going to a 4-yr college/university, they may have psychologists or social workers/case managers you can meet with to talk about managing interactions you may be having with people, changing major 4 times, establishing support systems during school. Services are usually no or low cost. There are people who will listen.