I'll probably tone down the dose, because it's the equivalent of 3 espressos, which is a bit much. I would normally do a double espresso.
For me, the tolerance made the effect go away after a month or two. I could take a caffeine pill, and go back to sleep. I had to start taking two, then three, until one morning I took so many I was basically shaking from caffeine, yet I was still sleepy.
Maybe it was just me, though. Everyone's metabolism is different.
Just like you, I realised that perhaps it wasn't the best idea since I was just taking them out of habit, and I stopped. It took me a few weeks to return to normal, during which I had the weirdest sleep and eating patterns.
If you drink more than three cups of coffee a day, you may need five to 10 times the amount of vitamin B1 than other people. That’s largely because you’ll excrete more of the nutrient through your kidneys and into your urine.
https://www.sheknows.com/health-and-wellness/articles/808646...
But more importantly, I just really enjoy drinking coffee. It's one pleasure in my daily ritual.
Also I find that eating a good meal with fats before taking caffeine works better for me. Otherwise I feel sleepy after caffeine.
Also, for faster absorption, I put it under my tongue and let it dissolve. That’s the fastest way to see the effects.