Main goal is fighting against cortisol and anxiety (allthought other benefits are welcome). I took nac before, but not consistently enough to really feel the results.

Now, my question is, when should i take those? Asch probably in the evening before going to sleep, and nac with ltheanine in the morning. I usually wait 1-2 hours after waking up before i drink coffee (which i want to combine with l-theanine) but sometimes i have breakfast before that, sometimes not. Different sources say that L-theanine should be taken on empty stomach (nac ideally too). Does it mean that i can't eat for quite some time after taking it even if i took it on empty stomach

Other question is that, you should wait with caffeine 1-2 hours (with moda in the morning rarely from modafinia) after waking up to not interact with morning cortisol levels, is it the same with nac and l-theanine? My logic says so, but of course i dont really have any legitimate information