Most of the Reliable Education students, when they start, either have a full-time job or are running their own businesses.
The great thing is that Amazon only requires short bursts of focus, especially once your product is listed, so you can build your reliable income without leaving your job or current business.
Adam himself built his Amazon business around another full time business. It takes some extra effort and commitment but is worth it in the end. You have seen the positive results that Adam has had because he took the necessary action to build his Amazon business.
With regards the course modules, if you have full-time commitments we recommend devoting at least 1hr per day to your study (ideally more).
From there it's up to you how quickly you want to get your first product listed. Obviously the more time you can devote the more rapidly you can build your Amazon business.