Answer: Yes! There is no greater peace than that of knowing, absolutely for sure, you have a home in Heaven when you leave this earth.
Let me explain. Since every human being has sinned (Romans 3:23); therefore, the "wages" of sin is death (i.e. eternal separation from God). God is just, and sin must be paid for—with no exceptions! There are only two possibilities: A person may pay for their own sin in Hell for all eternity or; exercise the only other choice, and accept by faith the payment Christ made for them on the cross. He gave His life to save ours.
In John 6:47 Christ said,
"Verily, Verily, I say unto you, He that believeth on me hath everlasting life."
"Therefore being justified (a legal term meaning "declared righteous") by FAITH, we have PEACE with God through our Lord Jesus Christ." (Romans 5:1).
"For we KNOW that if our earthly house of this tabernacle (our bodies) were dissolved (dead), we have a building of God, an house not made with hands, eternal in the HEAVENS." (2 Corinthians 5:1).
This is why God has given us His Word, as a record to be believed.
"And this is the record, that God hath given to us eternal life, and this life is in his son." (1 John 5:11).
"These things have I written unto you THAT BELIEVE on the name of the Son of God; that ye may KNOW that ye have eternal life..." (1 John 5:13).
God does not give a "guess so" or "hope so" salvation, we can KNOW we have eternal life because He promises it in His Word. You can believe a promise from God!