Can someone help me on my achievment of theSacrement of Confirmation?

I am 14 and I'm in my Religious Ed. Confirmation cl, I know that getting confirmed is you confirming your faith and becoming an adult in the church, but what sorts of thing are required for confirmation? I know you need a sponsor but how do you choose your sponsor? What is there role in the sacrament? Also they said something about your saint? Is this your patron saint? Also I've heard you do not need two years of R.E. for confirmation? I'm sorry for asking cause this proably makes me look like a not very devout Catholic, but my R.E. teacher is a college professor in theology and history and Middle Tennesse State? Please Help ME!