How do I know everything?

Computer Science major here,
It seems like everyone in my class knows everything already,
And they quickly absorb all new information.

How do I become like this?

>>4 use stimulants and study harder
Terrible advice. Stimulants lead to all sorts of problems, like heart problems and panic disorder. I would know, I abused Adderall and eventually meth and it fucked me up permanently. Amphetamine-induced psychosis is not fun. I became such a nervous wreck that I dropped out of college, quit my job, cut off all contact with my friends, and became the ultimate NEET/hikkikomori.

Study hard, but avoid drugs.