Yes, it's good to always find motivation in what ever you do. As for me, what gives me motivation is simply my earnings. When I know I can achieve a particular amount, I would try my best to actually make it happen. Would you still be eager to earn if there was no fun part?I can relate with that stressful part. You know like combining offline work with earning online can be a bit challenging. The earnings and the fun part motivate people like me.