今天我又去了滑雪! 自从上次去滑雪以后,我期待这次活动已经有很长时间。它已经成为了我生活中最能给我带来快乐的事情之一。今天我滑得比上次更好,也遇到了新朋友。感谢孙老师今天给我的指导,也感谢今天跟我一起玩儿的朋友们。我很期待我们下次的滑雪。
Normally, you are good at using suitable words to express your meaning. However, there are much differences between comma and full stop. Moreover, I think that you are putting "而且" in a wrong position. 而且 is similar to in addition, but you told two things in two sentences.