My day)

Hi, guys! Today I wasn't at home. The weather was very cold and I was ill... Firstly I was on course to teach my students. Secondly I went to visit my friend from university. And later I went to have some conversation. I think conversation can to improve my language skills, because I am beginning to think in English. That's all)

My day)

Hi, guys! Today I wasn't at home. The weather was very cold and I was ill... Firstly I was on course to teach my students. Secondly I went to my friend from university and finally I went to a conversation class. I think conversation can to improve my language skills, because I am beginning to thinking in English. That's all)

1.I am not quite sure exactly what you mean by "Firstly I was on course to teach my students", it is OK but not quite the way an English speaker would say it maybe "Firstly I went to give classes to my students" or "Firstly I was on a course about teaching students"

2.Sentences in English should not start with "And" or "But".

3. After "can" you use the infintive but without "to": I can run, I can improve, he can think, they can exercise.

4. In SMS or Social media we use "cos" instead of "because" but "cos" is NOT correct English.