Being terminated from any position isn't an easy thing to accept, thus your anger, hurt and bitter feelings are understandable. However being as that may it is never wise nor advisable to allow such things to cloud your search for future employment elsewhere. Most certainly do not express such feelings to potential employers
. They are seeking workers and aren't social service agencies or therapists. Also the world of nursing in many areas is very small. You have no idea what recruiter or nurse manager knows others in a particular town or elsewhere. Your preceptor may very well have been a horror, but kept that to yourself, trust me on this one.
Everyone expects some percentage of new grads to flit around between floors/units and or facilities with some barely completing a month of orientation. Things just happen and it is no different than other employment situations. You can be the best candidate on paper and interviews but when things began in the real world they just didn't work out. It is the old "Its not you, its me..." sort of thing.
Allow yourself a few days to vent and get the bile out of your system, then get right back out there and look for another position. If asked about recent work I'd go ahead and mention/put down your brief time at your previous employer (again sans any negative comments about your preceptor), simply because a job is a job. If asked why you left and or whatever simply tell the truth; things just didn't work out/it was not a good fit. The important thing to do is remain positive and upbeat.
While looking take the time to perhaps look into obtaining any certifications you are lacking and other ways to make yourself an outstanding candidate. Oh and finally remember it takes two to tango. Yes, your preceptor may or may not have had issues but consider how she felt and or it seemed when you requested another preceptor and or to be transferred to another floor.
Did you confide any of your "concerns" to others at work or even on the floor? If so and you can stand a bit more of motherly advice don't do that again. *LOL* In the grand scheme of things your preceptor is an experienced staff RN, and if she is anything like most she is not going to let a new grad (BSN, ADN or diploma) bad mouth her out of a job or harm her professional reputation. Since it is she who controls your destiny so to speak want to lay odds on who will be leaving that hospital first?