I'm thinking of producing and selling drugs
Why would you produce and sell drugs?
It's both a fun and profitable business.
Selling drugs is not only illegal, but it's also a way to hurt others that are addicted to the items. You should find a more legitimate line of work and make money that way.
Drug addiction always exist. It's not a big deal and it's a small price to pay for the large payout.
You could easily be found out and get arrested though. I think you should just forget this whole idea and earn money through a normal job.