That sounds very stressful. Just remember to stand your ground, stand up for yourself, acknowledge your weaknesses, and if they treat you badly, just ask them to treat you with the respect any coworker deserves. You're not going to know everything right away, so don't be afraid to ask questions. If they don't help you out, just say "How can you expect me to become as good of a nurse as you if you won't teach me how?" That'll get them. Good luck!!