Correção de redação "A nightmare trip I remember"

Olá pessoal, venho estudando inglês sozinha e por isso não tenho a quem recorrer para corrigir e me dar dicas sobre redação, como escrever melhor. Hoje eu escrevi uma redação, porque a um mês atrás percebi que meu writing é muito fraco. Então estou tentando melhorar nessa área. Eu vou postar minha redação, o tema foi sugerido pelo livro que estudo inglês - Oxford University, a história aconteceu de verdade comigo e me diverti escrevendo, mas eu não sei se está tudo correto, no tempo verbal certo. Me ajudem a melhorar gente. Me ajudem com sugestões, esse espaço é muito importante para mim.

Nightmare Trip

A nightmare trip I remember was there one year ago. When I was going to the little city called Santa Tereza. I traveled there for a visit camp university with my friends and my teachers at university. I left my home very early - 6:00 A.M and take a bus stop until at my university. There I was another bus until the city Santa Tereza.
The trip was good. The bus were more comfortable and all the time I conversation with my friends, reading a book and listening my favorite music's.
But when I arrive there, was awful. The city is beautiful, but the visit camp not was good.
The teachers made all the class walk very much. Walking in the plantation yam and other vegetables (at mud!) behind the tipical species the plant for reforestation. After we walking on a track with much mosquitoes, I spent repellent, but no avail.
I was very angry and with bad mood.
At time for lunch, when I was eating, I saw at mine lettuce a earthworm. My lunch ended at the moment. In the end my feets not stopped hurting and I sleeping at the bus until my bus stop and after finally arrived at my house.
Was awful, I have nightmare with this trip all the once that I remember.

Obrigada pessoal!!!