As long as you and I abide in this perishable flesh, we shall make mistakes. Nobody is perfect! This is an undeniable truth the wise can relate to. Don't try to cover up your mistakes with all sorts of excuses. The learning process does not exclude making mistakes. If you are willing to learn, you are going to make mistakes. Fortunately, mistakes are designed to help us learn in order to get better. Next time if you make a mistake, look at it as a learning opportunity, and I guarantee you that you will never be the same again.
I believe in you!