I got into a small accident, but big enough to put a crack in my bumper. The crack is about 1in long located at the center of my rear bumper. I'm dunno how to fix this. I already bought some touch-up paint, body filler, and sandpaper. I'm not sure how to go about this. Can someone please reply back with some solutions to this? Thank you!

Go to your local body shop store and explain to them the problem and they will sell you a special cream that works pretty good but is very time consuming. you must use this on rubber bumbers, or buy a new bumper.