I don't know if I can post this here if not, I am sorry.

I am an old gamer and don't have the funds to keep buying new games, I am looking into a PlayStation plus gift card to use but I'm confused as to what one to get to have access to the free game library as the one Xbox has. Is it the PS plus one or is it a separate one. all together. I would appreciate the help immensely.

You can see all the membership benefits here. Not sure how the gift cards work, but looks like both extra and premium have an access to the game catalog, essential only has the monthly games from the looks of it. I'd say getting the one that best suits you, you might want to be in contact with playstation's customer service instead though, they should be able to answer your questions 8D

Thank you