Can changing your handwriting change your personality?

A definate yes on being able to change your personality through handwriting but with a big caveate. Changes should be done one at a time for up to 30 days. As they say it takes at least 21 days to change a habit.
Did you know your personality is set before you even learn to write? I have a resentment stroke that shows in my writing and because of its size my teacher and I figured it came about age 3 or 4 and involved my parents divorce. Now he was a great grapho-therapist who specialized in anarexics, bulimics and suicides. It is best to work with someone who understands grapho-therapy before you try major changes to your personality and not just any handwriting analyst will do.
One recommendation is to underline your name every time you write it even if you use your nickname. Why? Well, what do we underline? Important things, and if you underline your name it will subconsciously tell your brain you are important. The next most usual thing to change is the t-bar. If you normally connect your t-bar to the next letter (th, to) this is not something I would change but if you do not connect the t-bar then yes raise it to between 3/4 and the top of the t. Do not go above it. The t-bar sets your goals so at the level of the mid zone letters you live day to day with no long range plans. Half way between mid zone and the top is reasonable and reachable but go too high and you are fooling yourself into daydreaming about the results instead of working on your goals. In fact 2 things you should never try to change is your slant and your Personal Pronoun I (PPI for short). If they change as a result of other changes in your writing or because of your personality changes that is fine but forcing changes can make you very irritable and hard to get along with and may sabatoge what you are trying to accomplish.