Don’t get discouraged when things don’t come easily. Rest assured in knowing that mastery in technique takes time and repetition. Practice patience, solve problems, work things out over and over if you have to. If your working your deficiencies out you will undoubtedly make mistakes. Anyone who has achieved excellence in any field knows the more mistakes made equals the more knowledge gained. Be diligent and take notes then get back to work. Have humility in where you are with your skill. You can only improve from here.