The operative word in that question is “doing” The Gospel of Jesus Christ turns on that word. The law is about “doing“. Grace is about “Being“.
Folks who work hard to be a “good Christian” miss the message of Christ’s ministry. (By the way, there’s no such thing as a “good” Christian.)
For some (I was a “some” for decades) living the Christian life means reading the Bible to find out the things God wants us to do for Him, then go about doing them. (There’s that nasty word doing again.) The “some” folks I know personally who thought that way eventually burned out, dropped out or gave out.
This may come as a shock to some, but God doesn’t need us to do anything for Him. God’s desire for us is to rest in His sufficiency. Jesus wants us to allow Him to live His life in us, for us and through us. We are His children. He loves us unconditionally. There’s nothing we can “do” to make Him love us more. There’s nothing we could “do” to make Him love us less.
For no one is declared righteous before him by the works
of the law, for through the law comes the knowledge of sin. Rom 3:20
But now we have been released from the Law, having died
to that by which we were bound, so that we serve in newness
of the Spirit and not in oldness of the letter of the law. Romans 7:6
Christ calls us into an intimate and personal relationship with Him. He wants us to surrender our lives and our wills to His life and His will. When we do, we can abide in Him, rest in Him and He will produce fruit that He grows in us and through us.
I am the vine, you are the branches; he who abides in Me and I in him, he bears much fruit, for apart from Me you can do nothing. John 15:5