This is one of the reasons why you should ABSOLUTELY have an enderman xp farm in all of your survival worlds
(1 - not that hard to build
(2 - unlimited enderpearls
(3 - lvl 30+ in under an hour
(4 - you can have all the enchanted gear you want
my farm isn't pretty looking, but it boasts great reward, definitely beat my skeleton xp farm by a landslide!
Note: Not my design, I copied a tutorial since I am unoriginal lol, here it is!