There is nothing to fear. God has told us what happens after death. You don't need a vision, sign, or visit to understand this. Just read the Bible, starting with the Gospels of John and Luke. Then read 1 John. In Chapter 5 you will find:
These things I have written to you, that you may know that you have eternal life, [even] to you who believe on the name of the Son of God.
To obtain eternal life, you must believe in Jesus Christ, the Son of God.
There is some more information about this here:
https://share.prayerrequest.com/showthread.php?t=1045
You also have to approach him by faith.
And without faith it is impossible to be well-pleasing [to him]; for he who comes to God must believe that he is, and [that] he is a rewarder of those who seek after him. (Hebrews 11:6)
This is the only way. It is far superior to what the world offers, which only ends in fear, hopelessness, and despair.