Having an early start will allow you to get off early or taking breaks when you need them throughout the day. It is also a good way to use your morning focus.

When you encounter something that frustrates you get up and walk around. Get a glass of water and come back. If you can't get much further after that, you need to move onto the next thing and come back later or change your approach completely to get a fresh mind on the task.

Changing the angle will help you tackle more stuff when they get hard.