Shower time the next morning.

If you're realizing you're stuck:

1. Get a complete thought out, even if it's shitty.

2. Quickly try use the code, even if it doesn't work that well

3. Move on to something else. If you can't, take a deep breath and phone a friend / mentor. Otherwise:

4. Read about the problem you're trying to solve

5. Go to bed

6. Think about it during shower time the next morning