I moved this to its own thread, as it is a new essay.
You tend to do what I call "going comma crazy," throwing in commas all over the place. In the first sentence, the only comma necessary is the last one -- omit the other two. In the next sentence, omit the comma after 2009 and also strike the word "yet" and the comma after it.
In the next paragraph, omit the comma after the parenthetical reference to the help of Professor Vance.
Repunctuate your penultimate sentence as follows:
Upon graduation, I plan to get the necessary training and become a registered pediatric echocardiographer
; and with the excellent training that I am receiving in adult echocardiography at ACC, I believe the transition will be a smooth one.
Simone, EssayForum.com