I had a few questions about distressing, so I am going to give a few hints as to how I do it. The key is how you choose to distress things, the look are want to achieve, so my techniques may not suit your style best.
1. choose several colors
2. paint, distress, paint, distress...in other words work in layers.
3. you can use tons of household items to give things the weathered look: use a nail to make dents, sandpaper, lighters to give the burnt effect, use screwdrivers to make different sizes and shapes for divets.
Here in the latest cross I finished last week.