You have a choice on how to see your life. Sure you can pine for the loss of a normal life. However you can also recognize that it is an opportunity for you to increase your empathy for those who have to undergo suffering because you get to experience it first hand. Suffering doesn't mean that you can't experience joy. Learn to use appreciation to value what you can have and appreciate it. In my experience, some of the best people I have met are that way because they had the chance to suffer and learn humility from it. The meanest ones are those who didn't.