Exciting productivity occurs when you are doing or learning something new. The excitement motivates you to keep taking another step forward. For this type, I have learned it is best to take baby steps to avoid burnout and to create a steady flow of productive days.
Busy productivity is boring. It is standard routines that you just need to do. For this type, I have found that my mood greatly affects how much I can do. There is no strong motivation other than "it has to be done." That being said, I add additional motivation by keeping in mind that it will make my future self's life easier.
Last thing I want to add is that productivity stems from self love, and the simplest way to love yourself is to take care of yourself: eat well, exercise, and sleep well. Having that basis will motivate you in all other aspects of life.