First of all I am one of Jehovah's witnesses, that being said we are all sinners according to Romans 5:12 (please read). All humans have inherited sin or imperfection from our First father Adam, because of this we all struggle with sin, be it minor or serious sins. We do however have help in this regard, at 1 John 1:8-10 (please read) says in part" If we confess our sins, he is faithful and righteous so as to forgive us our sins and to cleanse us from all unrighteousness".
The person we make confession to is Jehovah God in prayer, keep in mind that Jesus Christ died for all mankind as a ransom sacrifice, so that we may be forgiven of our sins, as long as we truly repent or turn away from doing wrong. Do you remember what John 3:16, says "For God loved the world so much that he gave his only-begotten Son, in order that everyone exercising faith might not be destroyed but have everlasting life". Yes one must exercise faith and learn about God and his son Jesus. We need to be foot step followers of Christ, not just in word but also in deed.
Jehovah's witnesses are involved in a worldwide preaching and evangelizing campaign, we offer free home Bible studies so that you can learn how to be a true follower of Christ and have a clean and clear conscience, by getting a clear understanding of the Bible and God's will for you as a person.
I encourage you to visit our website at www.jw.org to request a free home bible study. You also can download or read online an abundance of Bible based material that will help you in your personal life.
Such as How to have a happy marriage? How to raise children? What is the purpose of life? and Why does God Permit suffering? Right at your finger tips is a rich source of information, I promise you will not be disappointed.
I hope this was helpful.