[Clipper]

You are using the Wishing Ring as a reaction to the curse hitting you. You don't have to decide the cards or perform any actions of the Curse before you cancel it. Even if the Ring would certainly be targeted by the Curse, it can cancel it before anything happens.

Edit: Upon reading chrismalenurse's post again, I realise I am just reiterating this point, sorry. I mistook his rewording of the question as a new question.