The time when I am very tired of walking

At the year of 2008 I was at school, I am waiting for my uncle to pick me up from school.The school ended early today and I already told my mom, but I have waited for half an hour but he still didn't came, I got tired of waiting and carry my bag to find him at my house which haven't finished yet but he wasn't there.It was not far from school and I the weather is hot I also had to carry my heavy bag and lunchbox, when I arrived he's not there. I go back to school to rest, after a few minutes, I get up and walk to my cousin's house which is farther than my unfinished house, but I got lost and kept turning in the road, until I found it.But unfortunately he isn't there too! I am very tired and I go back to school and rest again.Then I got up again to find my uncle, but when I past the green field, a security guard won't let me, he probably didn't want me to get lost even he didn't help me in the first place. So, I waited in school for 1 and a half hour until the car came. I get inside and we still have to go to the unfinished house! Then my uncle spoke to me that my mother frgot to tell him. Then I thought, all the walking just now for nothing! I am very tired of walking........