Loop problem

Hi guys! I'm ultra noob in programming, so pls don't judge me, this is the first thing I ever did.

Yet, I have menaged to achieve my goal with a small problem. A set of clicks on the screen, depending on the color of the pixel.
In other words, if the color is red(16711680), restart the script, and if it's not, continue with the script. I don't know how or which command restarts the script.
I couldn't find it in help files and forums for hours now... Thx in advance

sleep(5000)
MouseClick("left", 1418, 49, 1)
sleep(15000)
$n = PixelGetColor(963, 411)
Switch $n
Case 16711680
MsgBox(0, "It's RED, restart script!", $n)
  >>>>>missing line
Case Else
MsgBox(0, "It's GREEN, continue!", $n)
EndSwitch
MouseClick("left", 862, 415, 1)
sleep(10000)
MouseClick("left", 647, 891, 1)
send ("45")
MouseClick("left", 572, 925, 1)
MouseClick("left", 1058, 493, 1)