Simple 2 keys script?

[reborn-freak]

Hey guys, I'm trying to figure out how to create a script that once I run it, it will hold Control and it will press "X" like 5 times a second.

So far I've got this:
#Persistent
SetTimer, PressTheKey, 50
Return

PressTheKey:
Send, {LCtrl down}{X}
Return

It doesn't really work though.. would really appreciate some help! Thanks in advance!