Holding LButton while clicking it every 30 seconds

[Alex_12]

Hey guys, Im new to this but i need a script that holds down the left mousebutton and clicks the left mousebutton every 30 seconds. I did try this but the loop part didn’t work. It stops after some time when i use, idk Why. Here is what i did:
!x::
Loop, 10
{
Toggle:=GetKeyState("LButton")
Send % "{Click " . ( Toggle ? "Up}" : "Down}" )
Sleep 30000
{
Toggle:=GetKeyState("LButton")
Send % "{Click " . ( Toggle ? "Down}" : "Up}" )
return
}
}
LButton:
Send {Down}
return

Thanks for help ~Alex