Please check my essay. Thank you

I'm learning writting English, maybe I have some gammar mistake or use some word that isn't accordant with the situation . This is my essay:

During my student life, I have participated a lot of student activities and the activity I like best is Full-moon festival 2010. This activity was last in two days and we had about 40 people, this is really an excited time for me.

We started going to Cu Chi at 9 am. It was noon when we pitch up, so we ate dinner at that time. We don’t have much time, just finished eatting, we was rest for about 15 minute, then we had to go to visit some old people in Cu Chi and gift present for them. Some people talk with oldie, some went to get water and some split the firewood. My task was split the firewood, it so tired but it fun. We joke very much and some girls give us some drink. At night, we had an event with teenagers in Cu Chi district. We had to build a scene for singing program. This event was last until 9 pm. Later, we fired campfire and sang together until 11pm. It is at midnight, I and some friends borrow a guitar of one in my team and we sang until 12 pm.

“Good morning everybody, now, we will oganize a full-moon festival for children at Phuoc Thanh junior school”. Team leader said. He split the team into four small team and I was assigned as team leader of a small team. It’s very exciting, I must guide all people in my team to build some “Play Store”. Four small team had built about 12 “Play Store”. At 9 am, I had seen some children come to Phuoc Thanh school and more and more children come to Phuoc Thanh school. Just for 15 munite, schoolyard was full of children and full of laughter. We had taken a lot of pictures and not just oganized the game, we also join the game with the children. It’s very fun. I think that is one of my biggest memory in my life.