Replacing starter

Whenever I try to turn the key I hear a loud clicking sound but the truck won't "turn over".
I've had this problem for about a year (although I got this truck about a year ago).
It use to turn over after a few tries but has gotten progressively worse as time has passed. I am am positive it's the starter (sorry not a car person so I'm not real sure).
But as of tonight my truck won't "turn over" no matter how many tries I give it and I gave it about 100 tries believe me lmao. By the way, there is electricity running to the truck as my lights and phone charger work properly.
Moral of the story I'm trying to get a link or maybe someone who can give me info on how to replace it myself I would also like links to the exact part that would need to be replaced.
(Sorry for making yall do the research to find the parts and links on how to do it but I am not good at "internet and need assistance). Thank y'all so much and I hope there's a way I can repay you for your troubles.