Now that we got the dirty business out of the way, let's look at the successes of various Deafblind people:
Everyone thinks of this woman first when they hear "Deafblind". She's the first Deafblind woman to graduate with a Bachelor's degree (Radcliffe, 1904) and has written numerous books and many public appearances. The drawback from her success though is that every deafblind person since is compared to her.
He was a Deafblind poet, writer, teacher, and Director of Services for the Deafblind at the "Industrial Home for the Blind" in New York. He got his Bachelor's Degree cum laude from Saint John's University in New York and became the first Deafblind to receive a Master's degree from New York University. He was also Barbara Walter's "most memorable" interview.
Everyone is pretty much online these days and know how to get around on cyberspace - thanks to Georgia Griffith. She graduated cum laude from Capital University, was a music teacher - could play 12 instruments, and she knew at least 7 languages. She single-handedly designed the IBM Special Needs Data Base and pretty much help create CompuServe. For eighteen years she managed some of the busiest and most volatile forums on CompuServe with a membership of thousands. She has been blind since birth and deaf for most of her adult life.
Deafblind from birth she is the first deafblind woman to graduate Harvard Law School. She previously worked as a staff attorney for Disability Rights Advocates and won a few accessibility cases. She currently works as a speaker and consultant.
That's just a few in a long list. Do your own research and you'll find many more.
Hope this helps dissipate the thoughts that Deafblind are helpless and need constant care.