I did both bush and cargo flying, not for the faint of hearth and not always easy to get into.
(The Alaskan Bush operators require Alaska time for insurance purposes, chicken or egg, which came first?)
Cargo flying can be a good career path and I enjoyed it much more that hauling pax around. Would go back if I could..
Best advice is: Don't get married, don't get kids: starting out you will be poor for a while and will have to travel around to where the jobs are, sometimes living out of suit case, and or drive fork lifts or taxi cabs in between to support the flying.
Things may have changed and your mileage may vary.
Good luck.
(As my Instructor said today In the simulator when launching down the runway for a certain V-1 cut