Do you have any studying style/technique that doesn't require too much pretentious preparation?
I don't really trust ytubers that enforces this "you must have this differently colored pens and papers" or "you must have this expensive gadget" like chile
Write them, read them (like a small part)
Then try to explain that to myself like I'm teaching someone
And for the parts, which I don't understand, I try to google that topic , if that doesn't help I try asking my friends reply
