sister school 2011 :)) Capitalize the first letters of your title.

Sister School 2011:))

hi guys, i want to tell my unforgettable experience :)) Hi guys, I want to tell you about my unforgettable experience:))
last january 2011, i join an activity that was very interesting, sister school in singapore and malaysia. Last January 2011, I joined an activity that was very interesting. It was a sister school in Singapore and Malaysia.

sister school is something like student exchange , but only 1 week . Sister school is something like student exchange, but only for one week.
From my school, there are 10 students and 7 teachers. From my school, there are ten students and seven teachers.

but, not only from my school, but also with 3 school in central java INDONESIA. It was not only from my school, but also with three schools in central java INDONESIA.        there are JHS 1 kebumen, JHS 1 wonogiri, and JHS 3 purworejo. There are..........
we went there by airplane . and the trip from indonesia to singapore around 3 hours.We went there by airplane. The trip from Indonesia to Singapore was around three hours. 
There we visited 2 school in singapore , San Yu Adventist School and Francis Metodhis school. There we visited two schools in Singapore, the San Yu Adventist School, and the Francis Methodist school. The teacher was very enjoyed when teach the students. The teacher enjoyed when we taught the students. But there was very different with my school, because when the teacher explain or teach about something , the students allowed to listen music, eat, or drink . It was very different from my school, because when the teacher explained or taught about something, the students were allowed to listen to music, eat, or drink. and in my school that was no, we allowed to listen music, eat or drink when break . In my school that was not allowed. We were allowed to listen to music, eat, or drink when we breaked.
from that activity , i have many friends and can increase my knowledge . From that activity, I made many friends, and increased my knowledge.
that's all from me , thankyou^^ That's all from me, thank you.

i wait comment and correction from you ;) I will wait for comment and correction from you.

This is really impressive! Remember capalization. When you start a new sentence, capalize the first letter. :)