I made a blink script. It not's really working. Help?

So i've made my own blink script (Since one is copied) and i don't get what's wrong this?

local blink = 5

local zero = script.Parent.M
local one = script.Parent.N
local two = script.Parent.X
local three = script.Parent.Y
local four = script.Parent.Z

while wait() do
	wait(5)
	blink = blink-1
end

while wait() do
wait()
	if blink == 5 then
	four.Visible = true
	three.Visible = true
	two.Visible = true
	one.Visible = true
	zero.Visible = true
end
if blink == 4 then
	four.Visible = false
	three.Visible = true
	two.Visible = true
	one.Visible = true
	zero.Visible = true
end
if blink == 3 then
	four.Visible = false
	three.Visible = false
	two.Visible = true
	one.Visible = true
	zero.Visible = true
end
if blink == 2 then
	four.Visible = false
	three.Visible = false
	two.Visible = false
	one.Visible = true
	zero.Visible = true
end
if blink == 1 then
	four.Visible = false
	three.Visible = false
	two.Visible = false
	one.Visible = false
	zero.Visible = true
end
if blink == 0 then
	four.Visible = false
	three.Visible = false
	two.Visible = false
	one.Visible = false
	zero.Visible = false
	script.Parent.Parent.Fill.Visible = true
	wait(1.5)
	script.Parent.Parent.Fill.Visible = false
	blink = 5
end
end

I can't be bothered to in depth with what I've done here but hopefully you've got the effort to study the below code.

local blinkInfo = {
	{true, true, true, true, true},
	{false, true, true, true, true},
	{false, false, true, true, true},
	{false, false, false, true, true},
	{false, false, false, false, true},
	{false, false, false, false, false}
}

local scriptParent = script.Parent
local zero = scriptParent.M
local one = scriptParent.N
local two = scriptParent.X
local three = scriptParent.Y
local four = scriptParent.Z

while true do
	for i = 1, 5 do
		four.Visible = blinkInfo[i][1]
		three.Visible = blinkInfo[i][2]
		two.Visible = blinkInfo[i][3]
		one.Visible = blinkInfo[i][4]
		zero.Visible = blinkInfo[i][5]
		if i == 5 then
			scriptParent.Parent.Fill.Visible = true
			wait(1.5)
			script.Parent.Parent.Fill.Visible = false
		else
			wait()
		end
	end
end