1.Only when you keep trying things you have not mastered can you make progress.
2.As long as you continue trying things you have not mastered,you will have improvement.
3.You cannot make progress until you keep trying things you have not mastered.
4.The only way to make progress is to keep trying things you have not been master of.
5.You will make progress only by keeping trying things you have not mastered.
6.Without keeping trying things you have not mastered you cannot make any progress.
7.There is no possibility of making progress if you don't keep trying things you have not mastered.
8.It is only by keeping trying things you haven't mastered that you can make progress.