Translation of Strafzettel

I like writting you messages although most of it is really pointless. I mean it is very good for my English studies, but except that I could not understand why you would be interested in reading it.
I already spoke to Lin, but nonetheless I would like to send you a list of lessons that you could start with. Please login to your Vocabulix account and save the lessons before starting with them.
To be honest, we did not understand one word of what he was saying, because his English was so terrible. Or maybe it wasn't and it was only his accent which we could not grasp. To us it was Chinese.