I Dont Know how to corectly write this script: Can u help me?

Im making a simon says like game,but im too noob how i should use that? i have a part named Text whit a SurfaceGUI in it,and a text label in it. in the same folder.

how i corectly should arrange the stuff??

   while true do

    script.Parent.Text = "Hint"

    script.Parent.TextColor3 = Color3.new(255,0,0)

wait(4)
Hint = "red"
wait(6)
blue.Transparency = 1
blue.CanCollide = false

yellow.Transparency = 1
yellow.CanCollide = false

green.Transparency = 1
green.CanCollide = false
wait(10)
blue.Transparency = 0
blue.CanCollide = true

yellow.Transparency = 0
yellow.CanCollide = true

green.Transparency = 0
green.CanCollide = true

hint.Text = 'BLUE'
wait(6)
red.Transparency = 1
red.CanCollide = false
	
yellow.Transparency = 1
yellow.CanCollide = false

green.Transparency = 1
green.CanCollide = false
wait(10)	
yellow.Transparency = 0
yellow.CanCollide = true

red.Transparency = 0
red.CanCollide = true

green.Transparency = 0
green.CanCollide = true

Pretty sure you should replace the "Hint" parts with script.Parent.Text, as it is not a variable