1) that i have to sin to qualify for the sinner’s prayer?
Most Christians don't believe in the "sinner's prayer", it's a modern practice only in a very small number of denominations.
The reality is that you, me, and everyone is a sinner--that's a universal truth about all human beings. God, in His mercy, loves us, and saves us. It is through Christ's redemptive work, His life, death, and resurrection which has accomplished for you your salvation. The work is done and finished. Through faith in Christ we have received the full benefit of Christ's work--our sins are forgiven, we share in His life, and His victory over sin, death, hell, and the devil. And so we have hope that on the last day, when Christ returns, God will raise us from the dead even as He raised Christ from the dead; and we shall have life everlasting in the Age to Come.
2) that the devil is the small god of this world? then who is god and who isn’t? i’m confused ><
There is a passage in Scripture which says,
"And even if our gospel is veiled, it is veiled to those who are perishing. In their case the god of this world has blinded the minds of the unbelievers, to keep them from seeing the light of the gospel of the glory of Christ, who is the image of God." - 2 Corinthians 4:3-4
It is generally understood that "the god of this world" is a reference to the devil. However, the devil is not a god, not a small god, not any kind of god. Also something else that's important here is that what is translated as "world" here is better translated as "age". The use of "world" here as a translation is archaic, and so can be confusing if one doesn't know the original Greek or the history of the English word "world". What St. Paul is saying here is, in essence, that those who follow the current order of things have, in a sense deified the devil. Not that the devil is a god, but he is like a god to those who--unwittingly--stand in opposition to God's work through the Gospel.
The devil is no more a god than my shoe. That's important to remember.
3) that because the devil is the small god of this world i have to make him god and live under him and live like this world to be blessed?
What? No. Absolutely not. The devil is defeated, tread under foot, beaten by Christ. The devil may roar like a lion, but he's ultimately toothless. "Resist the devil and he will flee" is what Scripture says. Because you are in Christ you don't live under the devil, you live under the Lordship of Jesus Christ who frees you from such bondage.
4) that God is only in my imagination?
God exists in reality. We can know Him through Jesus Christ, the Word made flesh.
5) that i have to live like this world so that i can understand others in order to help and save them?
We can't save anyone, not in the sense of salvation--only God can (and has) done this. And, no, we don't have to live like this world in order to help people. By loving others, by treating others with kindness, compassion, respect, gentleness, mercy, etc we are being a people of God toward our neighbors--and this is most definitely not of the world. The world says to hate others, Christ says to love others. The world says to use violence, Christ says to turn the other cheek. The world says to seek only yourself, Christ says to seek first the kingdom of God.
My question to all of this is, do you have a church? Do you have a pastor you can speak to?
-CryptoLutheran