Yes. This game does not exist for new players.

You can do everything this game has to offer in less than your 1st month trial period, except the current toughest content.

It's dead as dead can possibly be, but everything you need to know can be learned in maybe 10 minutes. Your trust magic will solo the entire game for you until you reach level 99, you can almost literally play blindfolded.

If it moves kill it. Do the Record of Eminence objectives the game recommends you do, it's in the quests menu, it basically holds your hand. Learn what ffxiwiki is, and use it everytime you have a question about content prior to 2015.

http://ffxiclopedia.wikia.com

You will hit a level cap at 50, it shouldn't in theory take you more than a day for this to happen. Then you'll need to know how to break the level cap using that wiki.