I can't emphasize this idea enough. Getting involved with your collaborator's problems almost always distracts you from your own. That can be tempting. That can be a relief. But it usually leads to disaster.
Twyla TharpMy greatest fear in working is always the end. Lately I have taken to tricking myself into finishing by leaving a hole in the middle somewhere, then stitching the two pieces together - the Union Pacific approach.
Twyla TharpOur ability to grow is directly proportional to an ability to entertain the uncomfortable.
Twyla Tharp