Hey people how do you handle the information overload?! I'm feel like my mind is full. Hardly remembering​ things and stuff I hear/read about! Please!

Add more storage and backup frequently

Your RAM is full.

Sleep so your CPU can put your RAM into hdd.

TLDR;
You need to sleep more. I know those "just one more push's @ 4 am" but you need sleep to process it. Sleep a night and review what you remembered. Learn what you forgot
GOTO TLDR;