Again I'm not an expert but following the group learned a lot, first get a 90 days visa from Thai Embassy the country you reside at, then when in Thailand apply for 1 year extension same time opening a Thai bank account and depositing 800K bath, again I might be wrong but give and take it's what one needs to do.
I’m not an expert on Thai visa rules but reading comments last three months in this group I thought what you get when you enter Thailand was a tourist Visa Exempt for 60 days not a tourist visa, l might be wrong.