Disregard all you want. You don't have to listen to me at all. I'm just an internet stranger. All of us react differently to everything. ๐
Clearly you must see the absurdity in your comparison of learning a skill that is potentially productive (and lucrative) versus taking a substance that has very real side effects and long term consequences.
You do you honey boo boo.
The lethargy is just the beginning...
It's not dooming if it's objective.
Have a read:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3286657/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4386138/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5353011/
https://www.rxlist.com/provigil-drug.htm
There are more. Just didn't want to shove it all on here.
Just be careful. The only other evidence I have is subjective. So take it with a grain of salt. Just don't want people to get hurt. Have a good one.