Start reading before you jump to any conclusions.

When we say I don’t sin we might as well Call God a liar. There is no way possible to not sin. Christ will however redeem us and forgive our sin if we will have faith in Him and ask. That will not stop our sin but it will give us forgiveness of sin.

MATTHEW 6:20 But lay up for yourselves treasures in heaven, where neither moth nor rust doth corrupt, and where thieves
do not break through nor steal: 21 For where your treasure is, there will your heart be also.

MARK 12:29 And Jesus answered him, The first of all the commandments is, Hear, O Israel; The Lord our God is one Lord:30 And thou shalt love the Lord thy God with all thy
heart, and with all thy soul, and with all thy mind, and
with all thy strength: this is the first commandment.
31 And the second is like, namely this, Thou shalt love thy
neighbor as thyself. There is none other commandment greater
than these.

LUKE 5:31 And Jesus answering said unto them, They that are
whole need not a physician: but they that are sick. 32 I
came not to call the righteous, but sinners to repentance.

JOHN 3:11 Verily, verily, I say unto thee, We speak that we
do know, and testify that we have seen; and ye receive not
our witness. 12 If I have told you earthly things, and ye
believe not, how shall ye believe, if I tell you of heavenly
things? 13 And no man hath ascended up to heaven, but he
that came down from heaven, even the Son of man which is in
heaven. 14 And as Moses lifted up the serpent in the
wilderness, even so must the Son of man be lifted up: 15
That whosoever believeth in him should not perish, but have
eternal life. 16 For God so loved the world, that he gave
his only begotten Son, that whosoever believeth in him
should not perish, but have everlasting life.

1JOHN 1:10 If we say that we have not sinned, we make him a
liar, and his word is not in us.

1JOHN 2:4 He that saith, I know him, and keepeth not his
commandments, is a liar, and the truth is not in him.

1JOHN 2:22 Who is a liar but he that denieth that Jesus is
the Christ? He is antichrist, that denieth the Father and
the Son.

REVELATION 1:18 I am he that liveth, and was dead; and,
behold, I am alive forevermore, Amen; and have the keys of
hell and of death.

So were do you start? Ask Christ for salvation. It’s as easy as believing that Jesus Christ died for you on the cross and was buried and rose three days later to save you from your sin. After you have asked for salvation Christ will forgive. Find a good Christian church and tell them that you have asked for salvation and they will help you grow in Christ.

Please study the Holy Bible as I can only put a few verses
here.