First of all , what kind of nursing are u burned out in? What areas have u worked in ? Have u worked only in one specialty? Have you only worked for one employer? These are some of the questions u have to first answer. Staying in one area can cause burn out, working under a harsh management or one that opposes your views may be placing undo pressure on u,even continuing to only work in one area can cause stagnatation , stress and resentement. Also, if working ina place where they tend to promote from the outside instead of their own can cause stagnation and resentment in turn cause burnout.
You really need to look at the array of nursing positions that are open that can still make you feel good inside,nursing is all around you , from research to occupational , to insurance to legal,to the quality assurance in health care HMO"s ,there is teaching , home care, creating your own business.
Before you end up depressed and in flames look for the flicker that got you into nursing , quit feeling tied to the long hours and required OT. look to something you think you would enjoy and spread your wings, keep with the old job till you make the whole transition or till you find maybe your job isn't is bad as you think it is,or you may find it is ok to chg your career path and try different area of nursing.