sounds like youve got the idea apart from what way round the wax and sealent go, sealent should be applied before the wax as it your protection and if youve got a good sealent it should give you 6/12 months of protection, wax is for adding gloss and is your final layer of protectent, the wax will give way before your sealent will so waxing after sealent in theory will extend the durabilty of your sealent.
hope this helps.