God created everything we know of. He is intimately acquainted with the details of every aspect of his creation:
O how great the holiness of our God! For he knoweth all things, and there is not anything save he knows it. (2 Nephi 9:20)
He knows the past, present, and future as clearly as we know the traversal of the hands of a clock:
...the Lord knoweth all things which are to come.... (Words of Mormon 1:7)
We, on the other hand, do not know what God knows. Our understanding is incomparably limited compared to his:
8 For my thoughts are not your thoughts, neither are your ways my ways, saith the Lord.
9 For as the heavens are higher than the earth, so are my ways higher than your ways, and my thoughts than your thoughts. (Isaiah 55)
All sin is founded on false beliefs of cause and effect. Either the cause does not lead to the effect, there are more causes required, there are different causes required, or there are better options either in cause or effect for greater happiness.
The limitations in our understanding exceed our lack of knowledge, including limited perception of God’s instructions to us, limited understanding of what we do perceive, limited obedience to what he has already told us, and limited willingness to allow him to work through the circumstances of our lives, including the people we have access to. Each of these limitations limit what instructions God can give us and how much we will make use of what is given. These limitations can be summarized as a lack of trust in God.
As you limit your trust in God, he will only be able to guide you to the best outcomes subject to the paths you are willing to travel or the outcomes you are capable of understanding. In either case, your outcomes will be unimaginably less than what you could have had.
When you reach full trust in God, God will be able to guide you in paths you do not know to outcomes that are better than you know to seek:
`And I do this for a wise purpose; for thus it whispereth me, according to the workings of the Spirit of the Lord which is in me. And now, I do not know all things; but the Lord knoweth all things which are to come; wherefore, he worketh in me to do according to his will. (Words of Mormon 1:7)`[TODO]
This is not to say that those with full trust in God are expected to exercise so-called blind faith. Faith without reasons is not faith at all. Rather, deep faith consists in trusting that God has a plan which consists of a path you do not know to an outcome better than you know to seek while operating step-by-step in what you have sufficient light to see. It is what gives you hope that transcends immediate perceptions of value that would otherwise limit you to what you already understand.
God knows all things. He’s aware of the full impact of present character flaws in all situations, not just the ones presently upon you. A cracked dam can function fine until a flood occurs. If you will trust him, God will make you strong enough to withstand all possibilities in life, not just the ones you are presently aware of.