Sometimes just clicks when try to start

I detest "throwing money" at stuff. Get a test light/ meter and do some testing.

FIRST is turn on the headlights and operate key. Do the headlights dim or go out? That is a clue. If not, continue on

Put a test light/ meter on the big square terminal of the start relay, and operate the key to start. What happens? Bright light/ battery voltage? Nothing?

If nothing you have starter relay troubles

If you have 12V in "start" then it's either the wire going down to the starter solenoid, or the starter itself