Cans 'n' Can'ts

(Some of the can'ts below are "not yets" and some of them are "maynots", but all the cans are definitely cans)

I can't change the place where I was born, but I can decide where to live;

I can't change my bone structure, but I can change my muscle structure;

I can't control how much stuff is on my head, but I can control what's in it;

I can't control how people act, but I can control how I react;
I can't end world hunger, but I can feed a mouth or two;
I can't cure a disease, but I can spread awareness;
I can't stop a war, but I can refrain from starting one;

I can't undo the mistakes I made, but I can make sure I won't repeat them;
I can't make you fall in love with me, but I can love you unconditionally;

I can't avoid death, but I can enjoy life while I can.

P.S. IF I CAN, SO CAN YOU, BUT IF I CAN'T DOESN'T MEAN YOU CAN'T.