The Romans were torturing Christ's students (his disciples) right up into the 4th century. Then they formed a new religion arrrround his teachings and called it 'Christianity'.
There is no such thing as DYI salvation.
The Bible says there is only one way to be saved from damnation (because the wages of sin is death; we stand condemned ALREADY).
The question is, do you believe it?
"I am the way and the truth and the life. No one comes to the Father except through Me." That exclusive statement by Jesus rules out all man-made efforts to get to God, and therefore, ultimately, heaven.
The way to God is a PERSON, not a religion.
"I am the way."
"I am the door."
"I am the gate."
Test these claims Jesus made about Himself. He is the only way into God's Kingdom: Jesus is the one and only real-life PORTAL into this spiritual dimention... a fourth dimention. His kingdom on earth.
The cross is a spiritual 'black hole' for the world's sins, crimes and evil.
Any organization that makes the (ridiculous) claim "You need Jesus PLUS US to get to heaven." is not from God. Jesus is all you will ever, ever need.
"Come to me all you who are burdened and weary and I will give you rest for your souls. Take My yoke upon you; for My burden is easy, and My yoke is light."
Do this and live..
Do it today.
Tomorrow may be too late.