What I think is important either in work or studies: it is always be open for new perspectives and see the big picture ;). Healthy critique is good, as you need to be objective, though do not be lost in details too much.
Great ideas often come when you free your mind.
Sometimes you need to change the perspective to see new opportunities, they are often just around us. Being open, flexible and positive is really a path to professionalism and really fruitful self-development.
And when you have a challenge it is advised to put a temporal distance between yourself and goal you want to accomplish or puzzle to settle. To see the big picture with an open and clear head!
Be willing to explore!