I wonder what it will feel like when I die?

it will feel horrible and you will just cry and wish you were never alive

Christian Answer:

It depends how you die, every death is different. Be more concerned about what happens after you die.

Matthew 10:28

Do not be afraid of those who kill the body but cannot kill the soul. Rather, be afraid of the One who can destroy both soul and body in hell.

Remember 2 Corinthians 5:8:

If you are a believer and Jesus Christ is the Lord of your Life, We are confident, I say, and willing rather to be absent from the body, and to be present with the Lord.