As a ScrumMaster, you will encounter some challenging issues as you first try to create a successful team and then influence the organization. Whatever you do, don't go it alone. Meet with other ScrumMasters to discuss issues and potential solutions. Find a Scrum Buddy and create Agile learning opportunities across the organization; many larger companies hold Agile days in which outsiders will come to speak and talk with people. You are in such a better place than I was when I first learned Scrum—there are LinkedIn groups, blogs, twitter accounts, articles, and books galore on how to be successful with Scrum.
Tip
I once worked with a team in which everyone was so sensitive. Now, I'm a sensitive soul, myself, but they were just over the top. Every meeting you would hear at least five times sentences prefaced with, "Now, I don't mean this in the wrong way toward him," or, "I'm not being critical about this person, but," or, "Please don't take it this way…" It was ridiculous...