[ENTP]

Chin up! Here are some tips:

* Reframe the task as a game. A crime to solve if you like.

* See it as a series of black boxes that you keep subdividing (You are working top-down right?)

* Keep a [cork|black|white]board like they do in the movies with all the suspects and details of the case, with the string linking them (Do this digitally if you like)

* It's more important to know the I/O of the boxes/components than how they work, at least initially

* Be transparent with your employer about the difficulty. They know it's a mess - that's why you're there.

Good luck!