English work

review the letter:

Hi dear teacher ,

I am writing this in the intermission between classes to tell you of my extolment for your class. your group work rouses a deep sense admiration and joy within me. I enjoy every step of the work in your class. It comes without speaking that your class is the best. I don't know how to give vent to my feelings. You help me with the difficultness of English. I know other guys and I suggest them to take your class. I'm so much happy to be student of a sagely teacher such as you and getting your advices. Your help is beyond valuability.

Bye for now,

Teo

Which of the lexical errors would you correct for this intermediate students? which would you overlook? based on this letter , which topic might you prioritize in a future lesson : Collocation? meaning? word parts or derivatives? Grammatical forms ? others?