That's... sad! I look forward to every day! I look forward to breathing when I wake up! I hope that changes for you soon.
Not sure why the nootropics people are always trying to come up with alternate theories for why something works when substances like caffeine are well studied and known to provide a mood boost.
Good recent writing on the topic: https://dynomight.net/theanine-2/
Even Vyvanse vs Adderall XR are reported to have markedly different effects on the same person -- and after metabolic conversion, they're supposed to be the same active ingredient with fairly similar time release duration.
The downside I’ve noticed is that one side effect many people don’t realize is how it affects the body for some people. It can cause increased blood pressure among others - which can lead some people to feel anxious.
Body follows mind, mind follows body.
(As in my body feels anxious, so I must be anxious ).
I personally find the effects from Modafinil to be kind of like caffeine but with less side effects / longer lasting / more effective.