Advices for career, MS in MIS after CS?

Advices for career, MS in MIS after CS?

20y finishing my bachelor degree in computer science in italy. Wondering if this is good: finishing bachelor, working for a couple of years in IT (i.e. software engineering) in italy or elsewhere to gain money so I can borrow a bit with scholarships to apply and attend an MBA/MIM/MIS at university of buffalo, and to pay the 40k$ tuition, find a job in usa with high salary so to go to FIRE, get american citizenship in case.

Or: finishing bachelor, phd in cs(?) usa (it should be free and paid?), career for high salary for FIRE.

Possible? Makes sense? Advices? Something wrong?