I would like to know if I have used "make a good living" naturally in the dialog below? Does it just mean "earn well"? Thank you.
A: How did you afford to buy this car?
B: Well, let's just say that I've been lucky enough to make a good living from some ideas I've had.
Yes, it means "earn well", and it tends to apply to a longer period of time than just one's current salary, so it's most often used with present perfect or simple past, as in this example.
B's answer suggests that they have made a good sum of money from some kind of one-off or short-term deal. To make a good living is to earn a regular income that enables you to live comfortably, so we would normally say "I am lucky enough to make a good living from my work."
