If God is living through me, then I should never sense nervousness or guilt (or shame from the past) about what I should or need to do. My sense of responsibility was taken away at the moment of salvation when God said, "Now it is my turn."
Ephesians 2:6 "And God raised us up with Christ and seated us with him in the heavenly realms in Christ Jesus,"
First, notice, we are sitting down. Other of Paul's writings say we should stand. To me, these are similarly passive positions.
Second, if the core of who we really are is already in heaven, then what big change should we expect when we are fully moved there? I don't think we will be surprised, except by the intensity of the joy (C.S. Lewis( Link to Amazon)). This life is a shadow of things to come, just as life in the Old Covenant (up to Pentecost) was a shadow of what was to come now that the Holy Spirit abides in us. I am quite sure of several things that will NOT be a part of the heaven experience ever:
Rememberance of our sin here on Earth (link)
Crying, any at all (link)
Condemnation for anything we have ever done (link)
Finally, if the core of who we really are is seated in Heaven, then Satan can't touch us.
Let go, Let God.