What are you saved from and when do you know you are for sure?
Rom 10:9 That if thou shalt confess with thy mouth the Lord Jesus, and shalt believe in thine heart that God hath raised him from the dead, thou shalt be saved.
That a professing Christian would ask this question is very troubling...
And when do you know you are for sure?
When Jesus Christ died to sin so did I, the moment I trusted in His finished work on Calvary.
"I am crucified with Christ; nevertheless I live; yet not I, but Christ liveth in me; and the life which I now live in the flesh I live by the faith of the Son of God, who loved me, and gave Himself for me." (Gal. 2:20).
"For ye are dead, and your life is hid with Christ in God." (Col. 3:3).