How do I pick myself up after a major failure?

You have to figure out if you still want to be a Nurse or something else. Right now you are all over the place. You need longevity in your employment right now NOT seasonal jobs. Take a personality quiz geared for different occupations and this will highlight your strong points (what occupation would suite you depending upon the answers you give). After doing this, then try to get into school again using financial aid this time around or go to an unemployment agency to get info on how to get money to go back to school. If at all possible, try to get full-time status at one of those four jobs so you can start saving some money. DOWNSIZE (not going without- just necessities or getting things cheaper). You have to eliminate something so you can have time for yourself and be able to have quiet time so you can think. Stay around positive people and do wholesome recreational things.