Quoting: Rising Son
All of us have fallen short of our Father's goal for us, and none of us are deserving of His mercy after what we have done, but He is ready and willing to offer it to us nonetheless.
We really can drive people away when we say God's beloved children don't deserve His mercy. Of course we deserve His mercy - He created us, and loves us with all of His Being!
God did not create sin and temptation. This is the "devil's" world, and people come here to make their own way, without God. NEWSFLASH, PEOPLE - that will never work, as you can plainly see if you look around you.
Ask God to help you to see the truth, and He will. You will not be hurled into Heaven, but you will stay to help others who are snared in this illusion. We are all in this together, and, OP, I appreciate your trying to help!
You cannot assume God's mercy, although it is infinite and everlasting. To say that we are deserving of God's mercy is equitable to dictating everything else that we feel we deserve from our Father. Only our Father knows what we are deserving of, not ourselves.
You underestimate our Father's design - sin and temptation were implied creations that He fully intended for in order to form the construct that we see today. He cannot force us to love Him, so we must choose on our own.
I feel sorry for you, brother, if you think a loving Father would create such a world as this.