One of my favourite saying : "No other thing motivate human-being to work as much as hunger"
If you see a person working you always respect it. No matter if we collect rubbish, working in warehouse, create art, when someone work especially with passion there is some energy floating around that person.
Best option is working when you feel like, when you really need but we shouldn't never work because of our greed, that leads to lack of satisfaction, miserable spiral.
Think about it, think about what work suppose to be for you.
Photo taken in Penang Malaysia. Canon 5dmkIII