okay, it's clearly not about PR - you haven't mentioned the name yet. but i'm still very curious, and at this point i don't think it would distract from the intention of this post.
would you be comfortable telling us what category the app falls into, or giving a sense of what it does? can you say what kind of marketing went into attaining those sales?
No matter how great your idea is, the Apple store will be unforgiving as hell. There is a LOT to be learned, and while you are learning it, you will need to have a job, because something needs to pay for the mistakes.
Do not quit your day job until you have BEEN PAID $3000 in the bank. Until you can go to the ATM and take out some of that $3000.
Have you not learned anything from this experience?