Go to soi post office Pattaya and talk to maneraat visa services. They do a " student visa" where you don't have to attend the school. (If you catch my drift) I used them for 2 years. Remember it's Asia , everything is for sale. You will love Thailand. My advice just sell up and go. If you don't like Thailand, you have the rest of South East Asia to try out. I got an online call center agent job remote selling solar from my home state and bailed to Thailand. Been here 3 years. Reach out if you need advice.
That's why I left Thailand, I love it so much but I never felt welcomed because staying was always a hassle. I prefer Philippines or Cambodia (where I am now). I feel like they actually want me here. I still miss Thailand but sweating visa got exhausting after 2 years of it.i still miss you Thailand!!!