If you do not have a university degree in any subject, you can not legally get a work permit to teach. Your university degree also has to be certified as being real
understand that as soon as short wait times are reported publicly at any embassy throngs of applicants flock to that embassy, and the queue get longer, as you are experiencing. Deal with it if you want the visa. The same happened in Vietnam. It's not as though you are the only one applying. There are hundreds applying daily there now, as it is the closest embassy.
You can legally have a bank account, although hard to get. That's not the problem. The problem will be the cost to your employer to transfer your wages into your Thai bank account, as it is not free to do. It can be very expensive.
lolol, just in the small city I was in before I moved here there were 14 overstays from Thailand that I knew personally, and that wasn't counting their family members also here.