You're not allowed to work on a visitor's visa even if you have a social security card. You would need work authorization through a non-immigrant visa, family (marriage) based petition, or something like that. There is no good quick way to do any of that. Beware of the 3/10 year bar for overstaying a visa.
My answering this question does not form an attorney-client relationship. Always retain a qualified attorney before taking any action. My office offers free consultations.
In addition to the issues my colleagues have mentioned, please note that just because a B visa has a 2020 expiry date on it, it does not mean that a B visa holder can remain in the US until that time. It is the date on the I-94 which is controlling, and a person is out of status if they remain in the country beyond that time (without obtaining an extension, change of status etc).