You wrote 'How can I accept Jesus Christ in my life?'
Then you said,
"To accept Jesus, you need to study the doctrines of christ Jesus."

To "accept Jesus" isn't even biblical.
But a natural man does not accept the things of the Spirit of God, for they are foolishness to him; and he cannot understand them, because they are spiritually appraised.
— 1 Corinthians 2:14

How one becomes saved is through faith. And Faith Alone.
How you worded it was "to become saved you must first study the Doctrines."

I'm not saying you shouldn't study doctrines, but if you're talking about salvation, you only need to believe in Jesus Christ.