Let go of the expectation that if you work on yourself enough, you won't struggle anymore. If you work on yourself enough, you'll understand what the struggle is for.
We may have to struggle to achieve our goals, but our struggles may yield as much growth as our learning. The strengths we develop in overcoming challenges will be with us in the eternities to come. We should not envy those whose financial or intellectual resources make it easy. The stuff of growth was never made of ease, and persons who have it easy will need to experience their growth with other sacrifices or forego the advancement that is the purpose of life. Dallin H Oaks Learning and Latter-day Saints Ensign, April 2009
God knows that you are not perfect, that you will fail at times. God loves you no less when you struggle than when you triumph.