In my opinion you're looking at this backwards.

The drugs in question are not trivial. They're addictive psychoactive substances which can have physical health complications. Some people get an irregular heartbeat, some lose their appetite and slowly go anorexic, some people can become manic.

It's bad medicine to prescribe these drugs without active monitoring for these side effects. Ongoing medical history with weight, regular EKGs over time, are a minimum to safely prescribe.

Why would you want to take these drugs without those basic precautions?

You sound like one of those people who think stimulants are a magic solution to scattered thinking. They are not. They're just a tool, and you will need to build a scaffold around that tool to make it useful.

I've been diagnosed with ADHD. Amphetamine allows me to focus, yes. But it also required mental discipline and ongoing personal development to learn to channel that focus into something useful. Besides coding or doing my back taxes, I'm just as likely to sit and watch TV or play a video game for 6 hours straight. Stimulants let me do either, it's up to me to decide which.

Something of a double-edged sword. It has to be learned to used correctly, or you're probably not going to get any help from it, honestly. Your desire to avoid all the ongoing non-drug-related stuff strongly suggests to me that you're being led astray with that sort of idea.

That's just my two cents. I thought they were going to solve everything. They didn't. And I had to re-learn a proper relationship with them to make them useful. Thank God I had a good GP throughout it all.