Before Jesus ascended to heaven, He promises the church that the power of the Holy Spirit will come upon them. In Galatians, Paul reminds a church struggling with legalism exactly what it means to live in a spirit lead life and the fruit that comes as a result.
We must remember that without the help of the Holy Spirit we have no power to make anything happen. Fruit comes naturally as a result of walking in the Spirit, not from our best efforts. Even our best efforts will always fall short. Thankfully, God is not looking for our best efforts, He is looking for you.