The best way to arrange to study in the USA or Europe is to have lots of money to pay fees, living expenses etc.
Short of that it is difficult. In most of Europe it would be difficult to get a visa to study if you also intended to work (actually you are allowed to work in the vacations).
If scholarships are available from your government - I would grab one. Just because you are nominally studying one thing it does not stop you from also taking in some classes on a subject of interest to you.