So a Mini-map was proposed to me on like Friday... I turned it down due to scope / being able to test it. I however do agree it would have been a good addition.
I have a patch coming after the rating period that should make things a bit fairer. You'll get a new keybind that if you hold down while small you can zoom out and see the room you are in. I hope that will alleviate some issues.
For now the work around is to play fullscreen! Cheers!