Be picky which with jobs you choose to do, make sure it is not taking a ton on your health, and always plan for your old age just in case.
Unfortunately, many Nigerians no longer have this luxury. They cannot be picky as much as they want, even though they consider their health because they are also considering their stomach too, which will be the first to strike even before their health. This is the stage the economy has put us in.
You will be surprised at the level of work and risk some bitcoin investors in Nigeria put themselves into just to be able to get the money needed for Naira cost averaging.
Nigerians are no much affected here, especially Nigerians who know about bitcoin don't kill themselves much. The only set of Nigerians that should take this advice seriously are the ones that travel overseas to do all kinds of works. They do odd jobs that affect their health, they don't have good rest and some of them take more than one job, thereby working when it was supposed to be a shift day. So, Nigerians abroad are more victims of what is described in OP.