AFM training and my lousy day

I am exhausted.

What for? No one will understand. Because i was having a AFM training today. I did not expect it would be so heavy-loaded. Therefore in the morning, I did some ultracentrige before i left for the training. The morning session went all the way to 1pm. Can you try to help me understand why i freaked out in front of the tips? Was it because they are tiny, tiny, or was it because i was nervous about doing anything in front of people, I just could not get it. My arms, my hands were shaking horribly and they were so sweaty that i had to wipe them over and over again. The trianer even joked on me for "maybe using too many drugs or drinking too much alcohol". Now looking back, it was not that hard at all, was it? So, when i was given 45 min for lunch, i rushed back and only found out that I spent 35 min finishing up my experiment in the lab, and 2 min eating my lunch and a cup of coffee, then rushed back to AFM training. Nothing can be worse in the afternoon. We just did not find my DNA after spending over 3 hours there. Am I dumb or anything? On my way back to the lab, i met my boss and was asked about the day, can you imagine how embarassed i was? I just could not think of that for another minute. OK, it was already 5:15pm and I knew i need to get the kids as soon as possible. But, i was thirsty, my legs were so soft that i felt i could trip any minute. It was the first time in my life that i wished so much that some miracle would happen and someone would offer me some help. Of course nothing happened. I moved to my car with the heavy legs, holding a bottle of water. Thank god that the kids were behaving themselves, thank god that i could still be patient enough that all of us were happy when we got home. Then i fed those two starving little guys, honeydew, watermelon, yogurt and Cherrios. Sorry guys, that is dinner. Mommy had a hard day.