Take a moment to think back on all the things that you've accomplished. Like smiling at a stranger even though you are scared of people. Of not stumbling over words when someone asks you a question. When people say you've made their day. Or even small self satisfactory moments in your life. Think of that. Know that your life isn't "empty" or "hopeless". Be proud of yourself, of every little thing that you've done. You're here for a reason and you are important.