Paano kayo nakakaipon sa residency?

Hello doctors, disclaimer: I’m currently a PGI, a first gen doctor too. Planning to take up residency as soon as I finish PLE at as much as possible gusto ko sana makaipon while in residency.

I’m curious kung paano po kayo nakakaipon sa residency, or if may maiipon at all ba? Do you have your own businesses outside med? Or have other means of income?