Well, paint sealants dont usually last more than a year or so- you should be able to wax it. Check if it beads water or does it pool up.
Don't get it compounded. You'll do more harm than good. Use ultimate compound, its very user friendly and fun to apply. For the swirls, wash only with the double bucket method and no dry dusting. Use mf cloths and mf washmitts only.
Btw- as far as i know, be it sealant or paint coating, you can always top it up with a carnauba wax to enhance the depth! 
One more thing, compounding will strip off any paint sealant on your car so make sure you polish and give a coat of wax later on!