I think sex is better than nothing.
To put it bluntly, self-learning English is cheap and good.
You pay for it just to get a diploma.
If you go, study hard.
Teachers in English Department of undergraduate course are generally acceptable, and some of them are excellent.
I don't know. College of Continuing Education. Perhaps the best teacher is the same as an undergraduate.
In addition, I would like to advise that the northern language is not a place to buy diplomas. If you want to spend money fooling around in class, I guess you have to hang up.