Melatonin More Drug_uses If Amphetamines Make Your Brain Produce More Melatonin, How Come It Makes You So Awake?

If amphetamines make your brain produce more melatonin, how come it makes you so awake? - melatonin more drug_uses

I read that melatonin a chemical that makes your brain produce amphetamines. I thought it makes you tired, why do you feel is under stress? Is it because the neurotransmitter responsible for stimulating action far outweigh the effects of melatonin?