Raise your arms into mountain position

I took a yoga class yesterday over my lunch hour. I figured out a couple of things about myself.

I am even less flexible than I thought I was. Can I just say that Standing Dog (I think that is what she called it) really burns my calves. Heels flat on the ground...seriously?

I have NO balance what so ever. I literally felt like I was going to fall flat on my face just trying to balance on one leg. I am not sure how to focus beyond the try not to fall over feeling I have during the entire position.

I think my arms are freakishly too short. I was trying to do the position that had you cross your elbows and link your hands and wrists (I have not better way of describing these positions b/c I have only taken one class ever) and it just didn't feel like it was going to happen. I blame my boobs for being in the way.

I am super sore today. Who knew? OK so I am sure that several people knew but I didn't. I just thought it would help me to stretch out and increase my balance and flexibility but to tone muscles too? Still not sure I will go back next week. I felt pretty awkward as I tried to keep an eye on the teacher to make sure I was doing things at least remotely right.

The picture is actually a friend of mine who I went to high school with. He inspires me to keep trying (although I could do yoga everyday for the next 20 years and still wouldn't be able to do this).