I am a poor self-taught amateur guitarist. My music teacher was my late father. He played harmonica, guitar, and accordion since his youth in prewar days. I grew up hearing him play these instruments home. When I aged 7, he started musical lessons for me. Basically, he played some first and let me try to follow. Though I didn't understand theories at all, it was quite enjoyable and encouraging, as if a sort of sound game.
I was lucky. If he were a real professional? Probably, he forced on me lots of assignments and must have dried me up. I thank him but came to feel disappointed as I went up in the then dominant Carcassi method. After all, he was a poor amateur. Private guitar tutor was few and quite expensive then. I started training myself.
Teacher will teach what you don't do and know. As many moderators and fellows recommend, professional lesson must be a best choice but it is quite difficult to meet one who really understands and esteems your personality. Some are rigorous, others are carefree.
I started self-practising again a year ago. I have gained back so-so. As I wrote in Spanish forum, during X-mas holidays, I bought and practised a copy of Carcassi etudes by Ben Bolt. This helps me with checking my present level and correcting wrong by-products.
Let me introduce this. As you know, Carcassi's 25 etudes are essential for classical guitarists. Ben Bolt selects easier and more basic ones than a famous suite of 25. Some are from the 25. Attached CD plays his samples. Tablature may help you read and trace scores correctly.
Order Info.: ISBN: 0786675020 "Carcassi in Tablature" by Ben Bolt
Hoping to be of your little service
P.S. We can pre-view its preface and some pages but the URL is elbowed out here.