If Q1 is applying ground - in what way does my circuit need "fix(ing)"? I'm certainly not the greatest electronics engineer ever to grace the planet. In other words, I'm willing to learn something new or more.From the photo it appears that Q1 is switching the lights to ground or the negative side of the battery pack. The circuit above will need a modification.
I'll let Tonyr chime in here and fix it.
SG