Recognise confirmation bias, and look for gross error.
If you see a town and want it to be the feature you are looking for, you will start to see things that aren't there. Take a step back, and as above look for the larger features to cross check your position so you don't misidentify your position. Take an orbit if you need to, you will pass a CPL check doing that rather than blundering on with no clear idea where you are.