Not entirely in the individual's hands, as he goes on to say "Someone who is friendless, childless, powerless, weak, and ugly will simply not be able to find many opportunities for virtuous activity over a long period of time, and what little he can accomplish will not be of great merit. To some extent, then, living well requires good fortune"[2].
Surprised I didn't see this mentioned in the article. An adjacent, perhaps more controversial, formulation of this point: Meaninglessness can be countered by the voluntary adoption of responsibility. (e.g. having children)
[1] https://plato.stanford.edu/entries/aristotle/ [2] https://plato.stanford.edu/entries/aristotle-ethics/