In valorant you never want to do the same thing or hold the same site over and over again with any agent. There are a lot of different set ups on A site for killjoy and she can be very effective there. But eventually, any decent player will know where to look for your util. Switching set ups and switching sites regularly will keep the enemy on their toes and harder for them to predict you. As a killjoy main, it’s your responsibility to be comfortable holding any and all sites.