Let go. Why do you cling to pain? There is nothing you can do about the wrongs of yesterday. It is not yours to judge. Why hold on to the very thing which keeps you from hope and love?
Life is a gamble. You can get hurt, but people die in plane crashes, lose their arms and legs in car accidents; people die every day. Same with fighters: some die, some get hurt, some go on. You just don't let yourself believe it will happen to you.