and a glasss of wine and an aspirin. coffee in the morning. pot always. I wouldn't over think it. When I was young I had a whole monthly schedule, stims mon n weds, benzos thurs and tues, opis on friday and saturday and a psychedelic on the sunday (catholic sabboth). Figured I could pull that off without risk of addiction. Add pot daily and alcohol with caution when wanted. Plan broke down into full addiction.
heroin if it was legal would be viable; assuming you have a large budget and amount of discipline to match it.