First Pole Class Surprise

I attended my first pole class on Friday. I was so stoked and excited about it all. I'm generally a pretty confident chick, and don't really mind mirrors, even though I have about 40 pounds to lose, I'm getting there.  Well, I had called the studio beforehand to ask what I should wear to class, etc. The owner informed me that a tank top and shorts are good, and not to worry because "all kinds of body types take our classes, you'll see when you get here, no one cares. Don't worry about it."  I attended the class, with the expectation of "all kinds of body types." Yeah. That wasn't the case. Most of the girls taking the class were, I kid you not, 19 and 20 year old college girls. I'm 31 and, again, about 40 pounds overweight. I was pretty disappointed in myself that I was incredibly self conscious around all of these stick girls with their gorgeous bodies. It was rough trying to ignore it as I was clinging to my pole, staring at my body that I'm normally pretty confident with, that now appeared to have a blob/square shape next to all of these lithe, tall, sleek girls in the room-spanning mirror. Trying to drudge up some serious confidence for the next class, as pole is an art I am in love with and am planning to perfect, and I know I won't always appear this way to myself or feel this way. Has anyone else had this experience? Feel free to toss any tips my way!