All you really have to do to get to heaven is accept jeasus into your heart you dnt have to praise god every day even if you save the world you won't get into heaven you just have to accept jeasus into your heart.
God can forgive everything if you ask him to.
Hell is made for the followers of the devil (the people who sin) and you dont have to go there even if you destroy the world as long as you ask for forgiveness from god.
what kind of god would do that? He'd torture you eternally just because you didn't believe something for which there was no evidence, also hitler was a christian, did he go to heaven? IF you've been told he's an atheist here's a quote from mein kompf "I believe that I am acting in accordance with the will of the Almighty Creator: by defending myself against the Jew, I am fighting for the work of the Lord.."