Let me be clear that I'm not God so I can't tell you who is and isn't going to heaven. What I know about my relationship with Christ is that as a believer, I am eternally secure. I gave my heart to Christ and that gift of salvation is irrevocable.
The great secret, Eliza, is not having bad manners or good manners or any other particular sort of manners, but having the same manner for all human souls: in short, behaving as if you were in Heaven, where there are no thirdclass carriages, and one soul is as good as another.
Every spirit builds itself a house; and beyond its house, a world; and beyond its world a heaven. Know then, that the world exists for you: build, therefore, your own world.