Seems like the problem with this has to be due to the carriers misplace of package in their facility. I've only ever had one problem with amazon and they refunded me the next day after I contacted them.
They've been great for me and I live in California. I ordered all my PC parts from amazon and had a box sent to me worth about $800. Their mobile tracking has been on point for me, only delayed by about 5 minutes. Probably the amount of time it takes for them to confirm delivery and arrival.
It's time for you to just put the game away. After watching the anime and listening to the music every week as you've said, you are most likely burned out from anything P4 related. You already know where the story of the game is going to take you, so all you have left are the non main cast social links to look forward to, which isn't that interesting to begin with.
Basically, I'm saying you should just move on to another game. You don't want to grind to get to things you already know of, and you don't want to watch anyone else do the work. Also, taking a break from the game is a no go, since you'll have to start over if you can't pick it up from where you left off. Just move on.