Is there a reason you need the event to be a click or touch event. Those events are used specifically to take player input. I guess what I am saying is, trying to use a click/touch event without user input is the complete opposite of what those 2 events are for.
If you just need an event to fire repeatedly, you should use either the "Every Tick" event, or use a timer with delta time. If I were you, I would look up how to use delta time and make an event that just fires every few milliseconds (or how ever long it is you want between each time the event fires).