Grass that is here today and gone tomorrow does not require much time to mature. A big oak tree that lasts for generations requires much more time to grow and mature. God is concerned about your life through eternity. Allow Him to take all the time He needs to shape you for His purposes.
From Lamentations 3:25-26: “The Lord is good to those who wait for Him, to the soul that seeks Him. It is good that one should wait quietly for the Salvation of the Lord.”
Our ways may seem good to us. We may even enjoy some moderate successes. But when we do the work of God in our our own ways, we will never see the power of God in what we do. God reveals His ways because that is the only way to accomplish His purposes.
From Ephesians 1:18-19: “So that, with the eyes of your heart enlightened, you may know what is the hope to which He has called you, what are the riches of His glorious inheritance among the saints, and what is the immeasurable greatness of His power for us who believe, according to the working of His great power.”