Drugs are cool and all, but if you are using them as the ONLY way to think and focus better, you become dependent on them.
Alot of people like amphetamines (Adderol etc) for studying and tests, etc
But I don't think drugs should be the final solution. If you cannot control your mind to evolve to where it does what it needs to do without drugs, then shits gonna fall apart when theirs a drought.
Meditation is best to train focus and thought.
That being said.
Do some psychadelics. It'll improve your focus on whats important in life.
I recommend a a hefty DMT flash when your peaking or coming down from a psilocybin or LSD trip
When you come back, tell us how irrelevent the space-time "you" occupy truly is.