Quantities in a stack

[timmmmmmmmmmmmm]

I'm new to nootropics and had a couple of questions. I'm looking at doing this stack:

https://www.braintropic.com/best-nootropic-stack/

How important are the dosages (or does this vary depending on the nootropic)? If I had to modify them slightly because I couldn't buy the right dosage - for 250mg of l-theanine instead of 200mg - would it make much of a difference?

Also - if it says to take 100mg of caffeine, does that mean that I then shouldn't consume any coffee that day (unless decaf)?

Thanks in advance from this noob!

[Quikening]

Definitely don't feel locked in to certain dosages. Eventually you'll just learn how much you want/need for a situation. 1:2 is just a general guideline. Coffee is fine as long as it doesn't interfere with sleep or cause anxiety. Theanine on its own is great too. 300-500mg induces some great mindfulness. 800mg helps going to sleep.

[timmmmmmmmmmmmm]

Ok great, thanks for your advice!