Well your English seems good enough. I guess it should be easy for you to migrate to the UK and obtain residency?
Perhaps you should consider converting to a UK-issued JAR licence? A chum from Kenya thinks this is the way to go. Is Pakistan an ICAO signatory? That should help with the conversion.
LASORS describes what is required.
http://www.caa.co.uk/docs/33/LASORS_07.pdf
Expect to go through theory and skill tests again. There is no easy conversion route into the JAR system from outside it. But once you have a foot in the door, you have a licence that covers Europe and perhaps easily transferable to the US?