What program are you using - Premiere Elements or Photoshop Elements and what version on what computer operating system?
You mention of paintbrush suggests to me that you are working in some version of Photoshop Elements.
If that is correct, then you have posted in the wrong forum. You want the Adobe Photoshop Elements Forum (photo editing) and not the
Adobe Premiere Elements Forum (video editing). Some how your thread got posted in the Adobe Premiere Elements Forum.
If Adobe Photoshop Elements, please re-post your thread in the Adobe Photoshop Elements Forum or wait for a moderator to see your
thread here and move it from here to there.