My 2002 toyota camry six cylinder won't start when I turn the key I get nothing does not even crank no clicking checked battery, put in new starter relay, checked all fuses even checked to see if the neutral safety switch was bad, all good car runs fine when started every thing works when I turn on the key just won't start I noticed a day or two ago that when I went to start the car I would get nothing but after a second try it would start but the next day it wouldn't start at all if anyone could give me some insight it would be greatly appreicated thank you

. Check the ignition switch for wear, pitting, or melting.

. This link should help:

https://www.askmehelpdesk.com/cars-trucks/faq-how-troubleshoot-repair-maintain-hondas-selected-other-vehicles-46563-3.html#post235560

Starter needs replace. Solenoid contacts are worn out.
Of course basic battery connections need checking first.