I would never in my life ever be so presumptious as to say that I know I'll be let into Heaven. Jesus and God are indeed a part of my life, but by the very virtue of being a human being, I have flaws. There never has been, nor ever will be anyone who is perfect. Nevertheless, I am also pretty confident that I do live my life in a manner that God would find acceptable and so for that, I'm grateful simply for the time I have spent on earth and will spend in the years to come. As for Heaven, it is only God's decision and no one else's whether I belong there or not.
All that being said, I wouldn't know what to say, nor would I have to, because God already knows.