My monitor only show one "m.write" and not the next four

I'm trying to make a screen for a racetrack, it is supposed to count down, but it only displays "Let's start this race!" while the next three numbers of the countdown does not display on the monitor. How do i fix this?

m = peripheral.wrap("back")
m.clear()
m.setTextScale(5)
m.setCursorPos(6,1)
m.write("RACE")
x,y,z = rednet.receive()
if y == "startRace" then
   m.clear()
   m.setCursorPos(1,1)
   m.setTextScale(3)
   m.write "Let's start this race!"
   sleep(2)
   m.clear()
   m.write ("Three")
   sleep(2)
   m.clear()
   m.write "Two"
   sleep(2)
   m.clear()
   m.write "One"
   sleep(2)
   m.clear()
   m.write "GO!"
   rednet.broadcast("GO")
   shell.run("menu")
else
   shell.run("menu")
end

You might need to reset the cursor position every time you write a new number. I'm thinking the numbers are being drawn off-screen. For these purposes, it'd be best to make a nice clear() function to make things convenient.

m = peripheral.wrap("back")
m.clear()
m.setTextScale(5)
m.setCursorPos(6,1)
m.write("RACE")

local function clear()
   m.clear()
   m.setCursorPos(1,1)
end

x,y,z = rednet.receive()
if y == "startRace" then
   clear()
   m.setTextScale(3)
   m.write "Let's start this race!"
   sleep(2)
   clear()
   m.write ("Three")
   sleep(2)
   clear()
   m.write "Two"
   sleep(2)
   clear()
   m.write "One"
   sleep(2)
   clear()
   m.write "GO!"
   rednet.broadcast("GO")
   shell.run("menu")
else
   shell.run("menu")
end