Well what can we do to convince you its set on the wrong decision? You are not hopeless, and it is not in your blood.
Don't be ashamed to come here and ask for support on those darker days - that is ultimately what this thread is for. And we know you are strong even if you do not feel it. It is not something you've told us, its something we have seen for ourselves. You have an amazing head on those shoulders and we all can't wait to see the day where you are holding it up high again and finding the fun in life again. Until then, we are here - helping you to hold it together when you feel like you can't.
Honestly as everyone has already said, reach out, whether its on here, samaritans, a friend or by PM, just reach out, admit to someone and yourself out loud, where you are right now.
You are not weak for phoning someone/anyone, or asking for help - ever.
Or phone a friend, your friends would never mind if you called them (even at this time of night), they would want to be there (I know that without question, because I know that if it would help I would gladly PM you my number without question). Whatever is holding you back from reaching out - they won't care - all they will care about is you and being there for you.