The Qur’an and Hadith are clear that Allah grants us any desires/wishes we have in Janna. So if you will have these desires in Janna, yes Allah will grant them to you. Such desires can be affirmed.
Remind yourself that within a blink of an eye life ends. It’s shorter than we think. Ans then for infinity you will enjoy the blessings of Janna. Let this thought empower you to have proper Zohod.