That's pretty interesting, thank you. To me Adderall is a bridge too far though. I don't want to truly medicate (though I guess we can always argue semantics i.e. is getting coffee everyday not like medication?).

I just need something like the Americano every now and then really.

I agree on vigorous exercise completely. My last two jobs have been (well, the current one still is) hugely demanding and that led to me dropping a lot of exercise. Still trying to understand why and to undo that because I gained back 5kg (sigh).

Tried Earl Grey too. It's actually awesome but I must be careful; easy to go above a certain dose that just tires me and makes me crash.

One thing I'll try before considering the coffee machine really seriously: theacrine pills. I'll give them 2-3 weeks and will make a decision.

I used to be prescribed lisdexamfetamine for ADHD and after 3 years it did feel "a bridge too far for me" as well.

My stimulant of choice now is low-dose nicotine patches which I feel is extremely underrated, and demonised because of the effects of smoking and vaping. Mind you: I am an ex-smoker and I am quite aware of how strong the addiction can be, yet pure nicotine is the most mellow stimulant there is.

It's been 2 years now since I replaced my ADHD medication with nicotine and I haven't felt the need to increase the dosage. It's cheaper, lasts MUCH longer, doesn't cause anxiety and it doesn't push you around like amphetamine.

YMMV.