If a frag grenade went off near your head and left you deaf and blind, but you made it and were fine other than losing your sight and hearing, would you try to adapt to your new life or would you just want to die? I subscribe to the "You only live once" theory. While it would definitely be a major (and unfortunate) change of pace, I'd find ways to make it work. After all, if this happened to somebody nowadays, they'd have some serious advantages over Helen Keller. First off, the fact that you already know how to communicate, and you already know how to talk. You'd have to learn to read braille and your life would be tricky from then on out, but with modern technology you could still write books and get by with a lot of help.