Turtle farm tree AOTBT

while true do

turtle.select(16)
if turtle.compareDown() == true then
turtle.turnRight()
end

turtle.select(15)
if turtle.compareDown() == true then
	turtle.turnRight()
	--sleep(2)
	turtle.select(13)
	if turtle.compare() == true then
		i = 1
		while i <= 6 do
			turtle.select(3)
			turtle.dig()
			turtle.select(2)
			turtle.digUp()
			turtle.up()
			i = i + 1
		end
		i = 1
		while i <= 6 do
			turtle.down()
			i = i + 1
		end
	end
	turtle.select(2)
	turtle.place()
	turtle.turnLeft()
end

turtle.select(14)
if turtle.compareDown() == true then
turtle.turnRight()
turtle.select(3)
turtle.drop()
turtle.turnLeft()
turtle.turnLeft()
turtle.select(1)
turtle.suck()
turtle.refuel(turtle.getItemCount(1))
turtle.turnRight()
end

turtle.forward()

end