Mr. clicking sound when I try and start motor-won't start

that sounds like the starter motor bendix spring not returning , some starter motors can be repaired but most are mostly replaced, if you can get to the starter motor easily try tapping it with a hammer , this could help release the bendix until you get new motor

Check your switch that runs to your aternator.make sure is grounded .if not get a sand paper and sand it down.also check the switch that plugs in to the alternator.

sounds like the starter motor, make sure the battery did not leak acid and corrode the cable, remove battery cables and inspect first. If cables and battery are okay then starter is most likely cause

Won't start as in no rotation of the starter motor and no clicking sound? Or starter turns slowly with the engine? Or the starter and engines turns normally but will not start? Or starter turns normally but engine will not turn?

check your battery,or not clean battery terminals,or starter motor solenoid.

it sounds like the starter motor could be worn out, or could be as simple as the main pos wire is bad or corroded

It sounds like your starter motor is going out. More specifically the solenoid on your starter motor, and since the they are both connected these days unlike the older vehicles you like need to replace the whole starter motor. I hope this helps you out.

The click noise is the sound of the starter SOLENOID clicking but not contacting to supply voltage to the starter motor.
Now a multimeter test will confirm if the solenoid is contacting and if so then the starter motor is faulty.
It can be due failure of the BRUSH in the motor or the commutator. If so remove the motor and confirm.
Also if the starter pinion is struck the solenoid will click and the motor may not turn.

Without knowing if there are more things happening, noises, clicks, whirr sounds, or even how hard you drive it...

It typically sounds like a bad or clogged fuel filter... Although I've had some cars do this in the past, once they were heated up and had to wait an hour ow two to start again... that generally meant the fuel pump needed to be replaced.

This is called a Vapor Lock... and try as you might, they will not start

So, before you start going through quite a few external sensors, idle air control motors and egr valves and etc, etc at 85 dollars a pop...

Considering changing the FUEL filter and pour a bottle of gas drier in your fuel tank. You could have some condensation in your fuel and it may be as simple as that.

However if this dont help or the problem starts happening again, I would replace the fuel pump.

Good Luck and Happy Motoring

Respectfully

Bakkie ?
Anyway, try your headlights on full beam. If they dim to almost off when you try to start then most likely its your battery. If they only give a slight flicker but stay bright its most likely the solenoid on your starter motor thats failed. A push start will get you going so you can drive to a dealer.