How long before you know if this is your area?

Do you think three months out of a six month orientation is long enough to decide if you like a job? It started out great but the longer I go the less I like it. Also several things that were told to me during the interview like work schedule, call outs, working over, etc were not true. I should've known if something sounds too good to be true it probably is but I was very hopeful. They way it is (instead of the way it was portrayed) will not work well with my family schedule once I'm out of orientation. I don't want to burn any bridges though. Is it better to stick in there and finish the orientation and just see or would it fare better to tell them this isn't working for me and move on? I don't know which decision would be best-I don't want to make the employer mad because I do appreciate them giving me a chance. If I do finish the orientation and decide I still don't like it do you think they would let me go per diem? I just keep hoping the longer I do it the more I'll like it but it seems the opposite is happening. I just don't know what to do. Thanks for any insight!
What has it been like during you other jobs w/the 8 years of experience? I'd go with what felt 'right' with those, and gauge things from there

I think it's such a highly individual thing. Only you know what you are willing to live with. I can only speak of my own experience. I've been in my current position for a couple of years now (worked inpatient prior), and am just coming out of a phase of really hating it and wanting out. A simple schedule change helped me rediscover my passion for this kind of nursing, and I actually like my job and feel proud of what I do. Had I quit, I wouldn't have experienced this.So, I can't really predict what's going to happen for you. Only you know how long you're willing to tough it out in order to find out.Good luck!