Do not wprry, Chinese (Mandarin, I mean) is casual and can be understood even if serious grammar mistake happen. Another thing may help your learning is Chinese will give incredible respect to foreigners, foreigners do acquaint previlege, you can apparently feel this if you ve been to China.Any question about Mandarin learning and dealing with Chinese, do not hesitate to ask me,My FB:Dwight Wu (Nottingham).

我的一天

我每天上午六点半起床，七点洗澡和刷牙(It is better to say "ran hou(then brush teeth) instead of "he", In oral Chinese, you could say 七点洗澡刷牙, which naturally express you will do these in certain order, but not manage both concurrently)，七点半吃早饭。差十分八点(Generally, 差十分八点 is the answer to the query of time(xian zai   ji dian   le?) and not appropriate for statement. Hence, 7dian 50 is better) 去教室，八点上课。上午我有三节课，十一点下课。中午我回宿舍吃午饭。午饭以后我复习课文或者做练习。下午也有三节课，两点上课，五点下课。下午没有课的时候我看看(quite good uasge of kan kan)动画片。
每天五点我常常(repetition because of "mei tian") 去图书馆看书，做作业或者上网查资料。七点我回宿舍洗澡，洗衣服或者做饭。八点半钟我吃晚饭。然后我给爸爸，妈妈打电话，跟朋友聊天儿，听音乐。十二点我睡觉。