Acknowledge all your sins Acts 2:36 - 38

Therefore let all the house of Israel know assuredly, that God hath made the same Jesus, whom ye have crucified, both Lord and Christ. 37 Now when they heard this, they were pricked in their heart, and said unto Peter and to the rest of the apostles, Men and brethren, what shall we do? 38 Then Peter said unto them, Repent, and be baptized every one of you in the name of Jesus Christ for the remission of sins, and ye shall receive the gift of the Holy Ghost.

Confess those sins Galatians 5:19 - 21

Now the works of the flesh are manifest, which are these; Adultery, fornication, uncleanness, lasciviousness, 20 Idolatry, witchcraft, hatred, variance, emulations, wrath, strife, seditions, heresies, 21 Envyings, murders, drunkenness, revellings, and such like: of the which I tell you before, as I have also told you in time past, that they which do such things shall not inherit the kingdom of God.

Ask for forgiveness of sin I John 1:9

If we confess our sins, he is faithful and just to forgive us our sins, and to cleanse us from all unrighteousness.

Repent of those sins Act 3:19

Repent ye therefore, and be converted, that your sins may be blotted out, when the times of refreshing shall come from the presence of the Lord.

Forsake all your old ways and sinful habit Luke 14:33

So likewise, whosoever he be of you that forsaketh not all that he hath, he cannot be my disciple.

Join a Bible believing Church around Hebrew 10:25

Not forsaking the assembling of ourselves together, as the manner of some is; but exhorting one another: and so much the more, as ye see the day approaching.