Playing the flute is actually very simple. It lies in love and dedication. If you really have the determination to learn, have the time, and have the attitude of willingness to learn. I just learned the flute by myself, and it has been 2 years now, and the general tunes and techniques are fine now. If you want to learn the flute, you must first understand that the flute is divided into many types. The most basic one is the key of C D E F G, which is divided into qudi and bangdi.
Qudi is divided into E, D, C keys, the longest C key is about 70 cm, and the shortest E key is about 50 cm.
The C key also has high requirements for Qi, on the contrary, the D and E keys do not need as much as the C key. The most phenotypic D key.
Then there is the bangdi F G B minor A. This type of flute is relatively small, the sound is crisp and high-pitched, and the requirements for tone are stricter. The most representative G key.
Are you a boy or a girl?
Boys prefer E and D, and girls prefer G and F. It is better for both male and female beginners.
Then you should read more books and videos of flute teaching materials, or find someone who knows flute to teach you. If you have too little written knowledge, someone can teach you to avoid many detours.