The Prophet Joseph Smith taught that our minds are eternal. The human mind or intellect, like matter, cannot be created or destroyed. It exists independently of time, space, and even God. So when we say, "God made me this way," we're probably wrong. While God has given us everything else, our will and personality are uniquely our own.
God, in His great Plan of Happiness, has offered to give us all that He has, including perfection and the fulness of joy. In return, He asks us to sacrifice all that we have. But as Elder Neal A. Maxwell said, "The usual gifts and their derivatives we give to Him could be stamped justifiably 'Return to Sender,' with a capital S. Even when God receives this one gift in return, the fully faithful will receive “all that [He] hath” (D&C 84:38). What an exchange rate!"
The one thing that we have, however, that is not God's is our mind, our will. As Christ abrogated the law of Moses, He commanded that we offer up a "broken heart, and a contrite spirit." (3 Ne. 9:20). The one thing that is truly ours to give.