Starter wont engage

OK so what are you getting for voltage at the starter?

You said earlier "it sounds like it's skipping"

Can you pin down this sound a little more?

Is the starter solenoid buzzing in/ out, or is this skipping sound more like the stripping of gears?

You may have a ring gear problem, either worn teeth, or in rare cases, a ring gear CAN get loose and slip

It sounds like its skipping like click click click click click click click click click ........... very fastly. Until key is released or screwdriver is taken off the relay
the teeth are not worn much if at all and arent chipped, cracked or missing.
I didnt check to see if the teeth were spining on the flywheel but dont the starter would be clicking it would spin them