Recording yourself is another one of those simple things that can be easy to forget. We are lucky enough to have Wenger Virtual Acoustic Practice Rooms that have their own recording devices built in. I highly recommend before you do your next run through, you reach over and hit the record button.
There are many times we make mistakes while running a piece and swear to ourselves we will remember. Then after the run through, we make the same mistake again. It is good to be able to hear yourself without a horn on your face and it can certainly make other things more obvious like timing inconsistencies you may not notice.
Another thing I have recently been thinking about is who you play for. I challenge everyone to find new people to perform for. Go find a string player friend or a clarinet player friend to hear you or your group. Often times, we are only heard by professors colleagues who have heard us play for years. Some mistakes are often overlooked because they "know how we play." I feel like new ears would be more likely to grill you for the one chipped note your friend or professor may overlook.