Do I have to live in the United States?

No. However, the verdict is out on whether or not you can use Unyti in an OFAC country. In our opinion it is your value and that means your currency. With that said, is it subject to their rules: no. However, for the sake of argument and to be non-confrontational,  please read more about the

When I sell value how am I paid?

You are paid in your local currency. If you don't know what that is don't worry...Unyti uses dynamic currency conversion and since you are required to have your own payment processing method such as Stripe, PayPal or other payment processing choice you will get paid according to their currency rules.