Ahmad bhai
newly painted car require wet sanding to kill the orange peel from paint and than compound, polish
usually paint shops finish the surface themselves by wet sanding and compound so have ur paint shop wet sanded / compounded ??
if not than go back to ur paint shop for wet sanding as its require expertise. than do compound /polish.
meguiars m105 compound and meguiars polish m205 excellent combo after that protect with wax like meguiars mirror glaze #26 wax is good to give more depth and reflections in paint inshallah:)