Fixing botched paint job?

As said, you can clearcoat over single stage paint. I would just sand it smooth with 600 grit and respray seeing you have the paint. Take your time and do a nicer job this time or have a friend that can spray it? Wait the right time between coats. Three coats of single stage or clearcoat can get you what they call (panel pop). Little pinholes in the paint because the paint didn't sit long enough between coats and the thinner can get out.