Everyone goes through rocky periods of times in their life that makes them doubt their self worth, that makes them question their value. Question, even, their own Divinity.
In D&C 18:10, it states "Remember the worth of souls is great in the sight of God." In many instances, it is easy to brush it aside and say, "Yes, but I have no value." If that were true, it would say, "Remember that the worth of everyone's soul except yours is great in the sight of God." For direct revelation from God is not wrong, and as that verse is direct revelation, it is a Truth. Your soul is of great worth.
Too often we forget that we are not human beings having spiritual experiences, but Spiritual Beings having a human experience.
Feeling worthless is not a feeling given to us by our Heavenly Father. He is Perfect, and all He makes is perfect, and He made you. Therefore, you are of great value. If you are having feelings of inadequacy or feeling worthless, remember that feeling does not come from God.
Rather, it comes from Satan. If he can convince you that you are of no value, then he'll be taking out one of his biggest opponents: a righteous, chosen Child of God.
Do not forget of your own divine nature and individual worth. You have more power than you accredit yourself to. After all,
"Our deepest fear is not that we are inadequate. Our deepest fear is that we are powerful beyond measure. It is our light, not our darkness, that most frightens us. We ask ourselves, who am I to be brilliant, gorgeous, talented, and fabulous? Actually, who are you not to be? You are a child of God. Your playing small doesn't serve the world. There's nothing enlightened about shrinking so that other people won't feel insecure around you. We are all meant to shine, as children do. We are born to make manifest the glory of God that is within us. It's not just in some of us, it's in everyone. And as we let our own light shine, we unconsciously give other people permission to do the same. As we are liberated from our own fear, our presence automatically liberates others."