@juanlisa Thanks a lot for the advice! I totally agree with you that everyone has its own situation to clarify, and the essay I want to update today is right this kind of essay. By the way, basically, I applied for the same programs like you, but I guess I am just not competitive enough to get the admission to Heinz's DA Track, which is my dream program. Still, I want to enhance my computational skills, so I choose the DSPP program over the SAIS at JHU. I must send my big congratulation to you!!! I believe you can achieve anything you want through the study at Heinz and wish you all the best! Again, your information really helped, thank you.