We must each walk through life on our own, but we don't have to do it alone. God wants a powerful people. He gives His power to those who are faithful. We have a sacred obligation to seek after the power of God and then to use that power as He directs. And when we have the power of God with us, nothing is impossible.
The Lord has set no limits on what He is willing to teach us and give us. We are the only ones who set limits--through our neglect our disobedience or ignorance. We are in large measure the ones who determine what we will learn and experience in mortality, and what we will receive eternally.