@Zabrina *****
Just as an FYI I've never heard of an American getting the OX visa. The only country whose citizens commonly get OX visa are Australians because the embassy in Australia allows you to keep your money in Australia. Every other embassy as far as I know wants to see the money requirements in a Thai bank, so there's no advantage of the OX visa over the regular O visa in Thailand because both the insurance requirements and the bank deposit are so much higher for the OX visa than the regular O visa.
Most people just get an OA visa if they don't want to hold a large amount of money in a Thai bank account (easy to get 2 years out of this) or they get the regular O visa so they don't have a large insurance requirement. By getting the OX visa you are getting the worst of all of these.