Help regarding a QOL change for my script

[EB32]

I need a script to hold the Ctrl key down and spam "E"

My script looks like this:

F10:: ;F10 starts script
send {ctrl down}
loop {
send e
sleep 100
}
F11::reload ;F11 reloads the script, which stops the loos in the process
F12::exitapp ;F12 closes the program

However, when I reload or kill the script using F11 or F12, the Ctrl key is still being held down. I have to manually press Ctrl after pressing F11 or F12 in order to get it to stop. Is there any command that can do this for me?