You cant. You have to be redeemed.
Christianity is the only religion in the world that has a redeemer. All others teach that you can redeem yourself through works. But the bible says in Romans 9 that it is "not of works, lest any man should boast". If you redeem yourself, then you wouldnt have needed Jesus to sacrifice for you.
The truth is, you have already been redeemed, over 2000 years ago at calvary. Just devote yourself to God. Seek forgiveness, and stay in the word. Keep as close to the father as you possibly can each day.
Just believe he is God, and you will be saved my friend. Lay your burdens at his feet
Mathew 11:28~28"Come unto me, all ye that labour and are heavy laden, and I will give you rest. Take my yoke upon you, and learn of me; for I am meek and lowly in heart: and ye shall find rest unto your souls. For my yoke is easy, and my burden is light"
And remember, you are no different than anyone else. We are all in need of a savior. Even the preachers alike.
"As it is written, there is none righteous, no not one" ~Romans 3:10
"For all have sinned and come short of the glory of God" ~Romans 3:23