The most helpful for me has been to develop a solid daily and weekly routine. This helps me knowing when to stop so I don't burn out, ensure I have enough social interaction, take care of my health and keep my sanity. Also, having a wife who believes more in me than myself has been a tremendous asset, so make sure you have a strong support system.

When things get really tough, I just remind myself of my personal freedom and why I'm doing what I'm doing. Watching everyone else during rush hour is also a good exercise, especially on a Monday morning.