You can use a simple exercise to determine whether the list of motivations you've developed is an accurate portrayal of your inner self. This project involves comparing your past individual history to past efforts--both accomplishments and failures.
Now, take your list and provide yourself with a "grade" for each of those past situations. You can give yourself a standard "A to F" grade, or just rate your performance via some other system. The idea is to understand when you've done your best and when you have fallen a bit flat.
Now, go back over the list on more time and note what motivated you to undertake those tasks. Think back to what was pushing you forward as you started them and what sustained you as you were trying to complete them. This will allow you to compare your own personal tendencies toward success with the motivations you have uncovered.
Most of us will find that the motivations we've listed for ourselves fall in line, for the most part, with our own past experiences. Our greatest successes will usually be related, in some way, to those same motivations. The experiments that didn't work out as well were usually motivated by weaker forces.
This exercise will allow you to better isolate which motivators really work for you and may even help you to discover another motivation or two you overlooked earlier. It's a great way to test the motivations you believe work best for you against your own personal reality.