i actually came across these same exact problems when i painted my headlights too. to fix the low light, theres a silver screw thing that you need to spin. it looks like a bolt but its not, it just keeps spinning so keep goin until the light is level. and for the fogging up your gonna have to take it apart, clean it out, and reseal it. when i fixed mine i added sealant around the edges after i put it all back together just to be safe and its been workin good. hope this helps 