memorizing kills me

i jz wonder why some ppl can easily memorize the whole books/notes/etc..
but for me..even 1 piece of A4 size notes oso very hard..
i tend to be easily forget of wat i've memorized..
keep staring at the same paper over and over again for nearly 30 minutes now..
my brain still not functioning
shit..i cant memorize it..
good..very good..
tomolo dunno wat to write inside the lab