Nepal is not supported to connect Uphold or Gemini.
Brave is trying to add more countries. But it is something that may take long time as it involves compliance with regulations in all affected countries.
Your only option at the moment it keeping accumulating your rewards until a solution is offered. You do not loose much at the moment, we are in a bear market and BAT value is very low.
You can follow regular updates on the development of this in the following post.