How can we be sure if we are going to heaven

Heaven is the goal of every true christians. It is a place of bliss and the end product of christian race. When one engages in any life venture, one expects a reward. Thus, when a christian engages in heavenly race, the focus is on making heaven.
But for one to be sure that is heavenly bound, one has to fufil the heavenly criteria. First off, one has to be a born again Christian. I mean accepting Christ as his Lord and saviour. By so doing, one will qualify for the grace to live above sin.
To this end, one will be living according to the ordinances of the Lord and hate sin with perfect hatred.
Now for us to know that we are going to heaven, we shall have the joy of salvation, our conscience shall be crystal clear, no guilty conscience no self condemnation or guilty conscience we shall be dreaming about heaven in our dream world. Our physical world shall be ruled by peace.
In conclusion, for us to be sure that we are heavenly bound we shall be exhibiting christian attributes without pretence.