I'd like to be an actress but I used to be really shy?

I attended an Actor's Workshop for two years to build my confidence. Before I joined, they let me sit in for a three hour session, (two different cles, beginner and advanced).I sat in the seats and watched to see how it works. We had casting agents come in about every two months looking for talent. You're given a script, actually it's only a few pages. They tell you the role you're going to read from the script. No memorization, though if you're able to, you're ahead of the game. You just read the lines and act while you are saying them. Yes, we all sat in the same room and went to the floor (stage area) to perform our lines in front of everyone. I like that because by watching other's, I saw areas I could do better or in a different way. I had a lot of fun, gained confidence, and really learned to critique perfomances. Twice agents talked to my saying they were interested, wanted me and a few others to go to LA to audition again. I never went, not enought confidence, but some of the others were cast in commercials and had some success. Another was chosen for photo shoot in a teen magazine. My advice, it's fun, you learn about yourself, even if you're not successful, you'll be glad you did it. Just don't get caught up in the "herd" where you're desperate. Have fun.