Do you believe in the Gospel as taught by the Church. Many others have asked the same question in the past so you may want to find those and read the responses there.
I completely relate to all you've written; spots of us have come to see Mormonism for what it is, and the miami hook it does to human brains. I really hadn't considered a lot of the points people have brought up.
Joanna mentioned that our theology is rich with opportunities for second chances.