Too much

Yesterday, I went swimming to Unist's. There were many people and it was hard to swim, so I did only about 1 km instead of planned 1.4.
After the pool went to my 9 p.m salsa class. The salsa pattern we have learned had quite many men's turns and the first turn was a really complicated to me. So there it was, around 10 p.m, our salsa tutor was trying to show how to do it - there I felt complete impossibility even to stand on my feet. I almost felt down, when I tried a turn ! And I had to take a seat till the rest of the lesson.

Conclusion: Now I feel dissappointed and a little bit ashamed of being totally exhausted, I thought I have much more energy. However,it is already compensated by lovely sleep yesterday.