I wonder if I can get a professional advice on my daily stack. I am a programmer so I require a lot of focus at my work and usually I work more than 10 hours per day and I exercise 40 mins daily.

I researched a lot of nootropics and these are the once I found pretty useful:
Rhodiola rosea
ginseng
L-Tyrosine
Caffeine
L-theanine
Choline
Potassium
5-HTP
Magnesium
Ginkgo biloba
Omega 3
Zinc
Iron
Multivitamin
Holy Basil
Tribulus Terrestris
BCAA
L-Glutamine
Creatine
ashwagandha
b12
LibiPro
DMAE
Calcium
beta alanine
maca
horny goat weed
Phosphatidylserine

I wonder if there is conflicts between these supplements or bad reactions could occur on the long term?