it should be sanded with 600 first, then cleaned really well, then painted. you prolly suck at painting, no offence, so do I, that shit’s hard. just be patient, stick to a pattern, apply only a little at a time. wait until it’s tacky until you apply the next coat. if it still looks crap when its done, with the clear and everything on, just wet sand with some 600 or 1000 depending how bad it is, then polish, just make sure you dont break through the clear.