Xp Enchanting Turtle

mon = peripheral.wrap("left")
xp = peripheral.wrap("right")
xp.setAutoCollect(true)
mon.setTextColor(colors.red)
mon.setBackgroundColor(colors.black)
mon.setTextScale(1)

function enchant()
turtle.select(1)
turtle.suckUp()
turtle.transferTo(16, 1)
turtle.select(16)
xp.enchant(30)
turtle.dropDown()
inventclr()
inventclr()
end

function inventclr()
z = 1
repeat
turtle.select(z)
turtle.dropUp()
z = z + 1
until z == 17
end

while true do
  if xp.getLevels() > 29  then
    enchant()
  else
  mon.clear()
  mon.setCursorPos(1, 3)
  mon.write("Enchanting:")
  mon.setCursorPos(12, 3)
  mon.write(math.floor(((xp.getLevels() / 30) * 100)))
  mon.write("%")
  mon.setCursorPos(1, 1)
  mon.write("Level:")
  mon.write(xp.getLevels())
  sleep(5)
end
end