16 low blocks

I had my first introduction to the low block form last night. There are 16 low blocks and we went through them so fast that my head is whirling. We worked with a partner and tried to implement them. Besides the 16 low blocks, I have 10 techniques to learn. One master told me that I need to speed up my kicks and the other told me to vary the kicks, remember to keep my guard up. Yes, it takes me a long time to understand a technique and do it well. No, I am not very speedy. I remember my daughter riding home with me from taekwondo, tears streaming down her face, lamenting, "I am not very good." Now I understand, and question "why am I doing this?" I enjoy the forms, I like that the HKD improves my bone density. I like that the techniques challenge my mind and except for the masters and one tough die-hard old-school classmate, the others work well with me. They don't make me feel stupid and uncoordinated. In the four years that I have been taking HKD, I have received few positive comments.