Some people can move without feet, some people also can be productive without his hand. If I were in such situation, I would do anything and still be productive also.
But, the problem is, it’s not my hand, feet, or anything else, it’s heart that I lost it. Don’t ask “can you live without it?” or “can you still be useful and productive?”
The answer is no.
And my heart still in your dirty useless socks, that you even won’t notice it for your whole life 🙁