For some reason my animated text isn't working?

text = "What do you need?"
senzu = script.Parent
print(5)
wait()
for i = 1, #text do
	print('a letter')
	senzu.Text = string.sub(text, 1, i)
	wait()
end

this is my script. For some reason!! my 5 doesn't even print. You probably didn't need the whole script but it's short so i included it all just in case.k