Choosing a domain name for yourself is important! You want something that represents you, is distinctive, is probably not too hard to type, and yes, unique. Think hard on this decision. Do not choose a name that strictly representing a particular class or time period, as you may want to use this domain far beyond ds106.
Yes, it should be about you.
We recommend using a tool like Domain Search to see if the one you choose is available (For UMW students, just use it to check, do not click to register or buy it). You may also find NameChk useful to see if a username is available on a wide list of social media sites (it also looks for domain availability as well- you might want to coordinate all og your online handles).
If you are interested in ideas, here are ones that UMW students have used in the past.