If you can't figure out the difference between "you're" and "your," you deserve to be told the difference.
People love to go "leave them alone! Some people aren't grammar nazis like you!" If I say that, in my opinion, you're dumb for not getting it sorted out, it comes from me *learning* the difference *IN 2ND GRADE!* I know everyone wants to think of themselves as mommy's little smart kid, and you think I'm attacking you for pointing it out, but if I was able to figure it out, doesn't that make me better than you?
PSA: "Your" is a possessive: (your hat, your coat, your car, etc)
"You're" is a contraction of "you are" (you're going to the store, you're not smart at all, you're going to drive me crazy.)
Get it?