I can't really help much, but I just want you to know that there's a career or future out there that's absolutely perfect for you. No-one else can do it. We're all different, after all.

So try doing stuff that you love. Find something to smile about. Find something you're proud of, and do your best to follow it through. If you love what you're doing, you'll be able to motivate yourself.

And, finally, remember that your feelings are always valid. It's okay to feel down and empty. It's okay to break down and cry. Just don't do it alone - tell your feelings to someone. Don't sit in your room every night all alone. Please. No-one should have to do that.
And, trust me, there will be someone out there who will listen to you. You are loved, you're not alone.