Try reading the Book of Mormon because you want to, not because you have to. Discover for yourself that it is true.

But the natural man receiveth not the things of the Spirit of God: for they are foolishness unto him: neither can he know them, because they are spiritually discerned.

Humility is essential to the acquiring of spiritual knowledge. To be humble is to be teachable. Humility permits you to be tutored by the Spirit and to be taught from sources inspired by the Lord, such as the scriptures. The seeds of personal growth and understanding germinate and flourish in the fertile soil of humility. Their fruit is spiritual knowledge to guide you here and hereafter.

If you, through poor judgment, were to cover your shoes with mud, would you leave them that way? Of course not. You would cleanse and restore them. Would you then gather the residue of mud and place it in an envelope to show others the mistake that you made? No. Neither should you continue to relive forgiven sin. Every time such thoughts come into your mind, turn your heart in gratitude to the Savior, who gave His life that we, through faith in Him and obedience to His teachings, can overcome transgression and conquer its depressing influence in our lives.

You are making better progress than you realize.

Think of the long view of life, not just what's going to happen today or tomorrow. Don't give up what you most want in life for something you think you want now.

Personally, I am enthusiastic about the future. You can be too. You are living in the most exciting period of time in history. Many reasons could be cited for that optimism. Yet your greatest source of hope and assurance is that you have the fulness of the teachings of the Master. They will show you how to live a good life. You can receive ordinances and covenants that when righteously lived assure true happiness and significant attainment.