I became nursing supervisor after 8 months at my current job. It's because I perform better in the ways that management sees: documentation, solving customer complaints, getting along with and motivating all member of team, not complaining. We all have talents. Some of the nurses I supervise have better technical skills than me in one way or another. I recognize that freely. And not all floor nurses-not even many floor nurses-want to move into management. Some just want to work their shifts and go home. If you want it and are offered it, take it!
There has been some awkwardness supervising people who precepted me, but we got through it. Just approach it as a different team members, different strengths thing, and not a "you're better than them" thing. I've discovered I love administration and am now applying for MHA programs, with an eye on DON someday.