Newton, We Have a Problem (With the 2nd Law)

Just once would i like to have a brain capable of thinking many things at once and/or capable of holding everything i need it to!

I think it might help me understand forces.
Because you know when you're tyring to get something, and you think you're getting it, but then something vital slips way just as you get so close - !
And no one will explain! (i.e. my two textbooks) they just go well its not like this.

WELL HOW ARE YOU MEANT TO WORK IT OUT?

Grrrr.