Newb in need of help

Hey guys,

First off I wanna say Kudos for the deep (no pun intended) community you've created.

Now to the question, I have been sent to patrol off the Marshall Islands, in Feb. of 42. I have been patroling off of them for over 2 weeks, im too the point where i just cruis all day at ahead slow, so i can (maybe) make it back to midway and then to pearl. What do I need to do to end the patrol, or am I just not searching the right area, I've been about 2000nm west of the most northern point of the Marshall Islands. I've also tried patrolling closer obviously. If someone could please provid assistance I would greatly appriciate it.