If I’m Scared of Death, Does That Mean I’m Not a True Christian?

Questions about the difference between trusting your heart and trusting your human faculties to evaluate evidence, whether having a fear of death means you’re not a true Christian, and whether believers will spend eternity with the Lord on the new earth rather than in Heaven.

• What’s the difference between trusting in your heart, which Scripture says not to do, and trusting your human faculties to evaluate evidence and determine what is true?
• If the idea of death scares me, does that mean I’m not a true Christian?
• Is it true that believers will spend eternity with the Lord on the new earth rather than in Heaven?