Help me remember Persona 3 basics

[Tom Is a Door]

I just dusted off my PSP and found out that I have about 37 hours on Persona 3 Portable and upon loading that saved file I found out that I was super close to the end. At the moment the world is about to end and nyx is at the top of the tartarus? I forgot how to go to the tartarus, which character do I talk to or where do I go to in order go the dungeon / tartarus and level up and kill the final boss?

[Elmdor Rizer]

I'm just guessing here, but what about this:

1. Visit www.gamefaqs.com
2. Type in "Inspector Gadget and the Circus of Fear".
3. Go "WHY IS THERE NO WALKTHROUGH!?"
4. Drink a Shirley Temple.
5. Go to the metro station and ask people for help.
6. If nothing else works, start up your game and walk around aimlessly. Hopefully the last boss will find you instead.

[Jazzmarazz]

Fuuka is the navigator and you can speak with her practically every night. However, I think Nyx was a specific night that was predetermined just every other full moon boss battle.

If you are in fact as close to the end as you think, the top corner will say how many days are left until the next full moon.

Here's my two cents though, throw it away and play the ps2 version. I am currently making my own run through P3P and its awful. I'm only playing it for the few extras they added to the story. P3 is my favorite, but P3P is a disgrace.