Tryna make a sphere with ocmmands

So i want to make a sphere in minecraft and i used to use the command execute @e x y z fill ^{15 15} stained_glass 14 But i guess with updates the command stopped working and now gives me a syntax error The closest ive come to fixing this is execute at @e run fill ^{15 15} glass And it work rhe inly problem is that i need the xyz coordinates to act as the anchorpoint so instead of my mouse filling in glass i can spawn entities to place glass where they face idk if yall can understand my babbling but please help if you can