[ravenspeed]

AFAIK: caffeine blocks the neurochemical adenosine. Adenosine and GABA downregulate neuronal activity such as dopamine, noradrenaline. Dopamine and noradrenaline are the key transmitters where drugs like LDX inhibit their reuptake and causes more release of them. For dopamine (and noradrenaline), you need L-dopa, for L-dopa, you need tyrosine, for tyrosine, you need protein. For setotonin, you need tryptophane and thus protein. For acetylcholine, you need choline. You can also get enhanced release of noradrenaline for 5 h through cold showers. Likely, you need to downregulate your neurons at a certain time. You need GABA. However, taking GABA directly does usually not work. Lithium orothate does.

Creatine is likely also needed. Since creatine provides phosphates for your brain cells which keeps your energy metabolism efficient.