Do you ever feel this way? We try our best but it just doesn't seem good enough. I've felt this way when recovering from sickness and my patience is at a low point. You just have to tell yourself that you're doing all you can and that's good enough. Trust in God's timing is good enough to get us thru all our trials.
Some people tell this quote to God because they are relying on their works and efforts to be 'good' in order to be saved. 'No one is good, no not one.' No matter how hard you try, you will not be saved thru money, charitable works or your rationalizing ideas. "For by GRACE you have been saved through faith. And this is not your own doing; it is the gift of God..." Eph. 2:8-9.
What you should be trying really hard at is surrendering your will to His. Faith in Jesus' life, death and resurrection is the only good enough reason to get you into heaven.