Jesus promised that anyone who believed in Him ~has~ eternal life. (John 6:47)
The repentance (Greek–metanoia: “change of mind”) that is to eternal life is changing your mind about the sin of unbelief in Jesus.
“Repenting of sins” in order to be eternally saved is ~NOWHERE~ commanded in Scripture.
Repenting of your sins is not part of what saves anyone. That is salvation by human good works. Also, “committing your life to Christ,” (from false prophet Billy Graham) a.k.a. dedicating your life to discipleship, has NOTHING WHATSOEVER do with being saved. Salvation comes ONLY from ~believing in Jesus~. Sanctification (growing in grace, love, and holiness) and fellowship, grow out of our salvation, which is eternally and irrevocably secure.