Try doing something else and letting your subconscious do some work. I try to have three or four tasks at once so that if I run into a problem, I can switch to

Try doing something else and letting your subconscious do some work. I try to have three or four tasks at once so that if I run into a problem, I can switch to a different task. Once I come back to the first task, something will usually click and let me continue.