I stopped smoking tobacco beginning of 2022, briefly resumed this year for about 4 months and easily put it back down. I figured out that it was making me more submissive (peace pipe). It wasn't helping me concentrate either.

Even worse though, was the alcohol, even when I limited it to a couple pints a day it was still making me sick. I developed long term chronic B1 deficiency and recently started getting double vision. The alcohol was also ruining my ability to concentrate.

Going on a Keto/Paleo/Carnivore diet helped a lot too. I now consume far less carbs especially without the alcohol. I have to be careful though, as I'm allergic to most plant proteins and mildly allergic to milk and egg white.

Also, if you delay your morning coffee by about 90 minutes and get out in the light as soon as possible to trigger the pineal to send the signal to your adrenals, after a week or two of this your brain starts to wake up your whole system by the light signal and the caffeine is just gravy on top, not so important, not so much jitters cos you can cut back.