I have been a professional piano tuner for decades, but I still remember well a time when I was a young piano player, knowing nothing at all about tuning. I only knew that to satisfy my ears my piano needed to be tuned about four times a year, with the change of the seasons, and that my parents could only afford to pay for one tuning a year. In a recent popular movie, a teenaged wizard reminds his friends that every skilled person, even the greatest, started out as a beginner. As long as you have no prohibitive physical limitations, you can learn, with time, study, and practice, to do anything yourself.