Hey student, firstly congratulations on clearing the cutoff for JEE Advanced 2022, a great feat for many. Anyways, coming to your second attempt, you won't really face an issue if you do not appear for it even though you have registered. But an advice would be to give it a good try as it would be a chance at improving your overall score and hence will boost up your JEE Main CRL rank. So, even though you miss performing at the Advanced you will still have a very good college in hand.

Also, if you are trying to focus only on Advanced you can miss the Mains session 2 as JEE Advanced is a bit different from Mains, requiring higher analytical skills and practical approach alongside precision. So that's both of the options and you need to choose one above the other, think wisely, all the Best!