I firmly believe there are important advantages to having a teacher. A good teacher is an excellent resource. A good student can maximize their learning potential with the guidance and advice of a teacher.
A teacher is like a native guide that can help you find the best route through the jungle. If you are motivated to learn, a teacher can provide advice and guidance that will help you get where you want to go faster.
Also, deciding to pay for lessons can be an important step towards being committed to learn and improve. Yes, lessons cost money - but if you channel your energy to really getting the most from a teacher's advice then it will be an good investment that pays off handsomely.
A teacher can't make you learn - but if you are motivated to learn, a teacher can speed the process.
"That darn Pythagorean Comma thing keeps messing me up!"