Possibly the main thing you need to consider is the people you will be selling to, meeting with, and associating with. They are not likely to be friendly folk and I know a few people who have turned out far worse after realizing that the "easy and prosperous" life they chose in making and dealing drugs involves dealing with some pretty mean characters.

It's not as simple as "it'll be a short term solution", it's a hard life to get out of once you're in it. And it is a life, not a hobby or easy source of income.