Combinations - Beginner Stacks/Nootropics?

[Imakill]

SWIM recently started to take vitamins and supplements, and decided to try to start using Cognitive Enhancers/Brain Boosters. SWIM is also only18 years old.

SWIM was also recently prescribed Dextroamphetamine 5mg to help SWIM focus. SWIM wants to know of any altercations that could or would arise when using Nootropics or Supplements on Dextroamphetamine

Right now SWIM is currently taking:
B-Complex: To bring back dreams
Acetyl L-Carnitine: For memory because SWIM likes pot :P
Fish Oil

Piracetam 800mg is on the way in the mail
SWIM is picking up lecithin later today
SWIM has put thought into buying Hydergine and Huperzine

SWIM is new to this, what recomended dairly doses of Piracetam, Lecithin, Acetyl L-Carnitine should SWIM do?

Any recomended stacks? or other Nootropics