My uncle once quoted a chinese proverb he learnt. He said to me, Joyce, "never be afraid of walking slowly but be afraid of standing still".
Martin Luther King Jnr once stated:
“If you can't fly then run, if you can't run then walk, if you can't walk then crawl, but whatever you do you have to keep moving forward.”
No matter how many mistakes you make or how slow your progress, you are still way ahead of everyone who isn't trying.
Be honest with yourself. Be your biggest critic and your biggest cheer leader. Self assessment will help you discover weaknesses and mistakes you should never repeat.
Without honest assessment, there will never be growth. Without growth, there will be no progress. So don't live your life in circles. Develop new skills, improve on old ones and keep pressing forward no matter how many times you fall.
What is worth doing is worth training for. Never stop learning and never stop applying what you have learnt.