Mostly due to your extremely wide left margin. Often, this indicates someone shy, reserved and who had a difficult/unhappy childhood they are working to overcome. It also can be a sign of divorce or recent break-up. Your starting letters tend to separate from the rest of your letters and your i's stand alone. The combination of these factors with my interpretation of the location, pressure and symbolism of your doodles indicate past anger and intent to move forward.
Please be aware that my methods were not pure graphology alone. Some things I felt to be true...like when you get a positive or negative vibe from someone you've only just met, without knowing why. However, I did try to corroborate these impressions with graphology, basically looking for affirmation from each system to the other. This is why I questioned the veracity; wondering if any of it held truth for you. I also worried the results might be skewed due to the fact that it was a flawed sample and was done online. So, I'm hoping it didn't freak you out too much.