Hello Nixx, welcome to SF. I'm sorry that you want to die.
It would be best for my beautiful family
If your family loves you at all, killing yourself would be the worst thing you could do to them.
I feel Our Lord Jesus Christ has tured his back on me as I'm not worthy of his presence
Didn't Christ Himself on the cross say, "Lord, why hath thou forsaken me?"
I can't say in this moment that I know that God/Christ exists, but if He does, then surely he loves you and doesn't want you to suffer. He has not forsaken you. It's understandable that you may have doubts, but it should also be clear from the Christian tradition that you are entirely forgivable, redeemable, and dearly loved.
If you can say more about what's going on, maybe we'll be able to help.
I hope things can get better somehow.