By the way, I taught myself the electric guitar completely. I've been studying it for months. Now I can play some tunes and simple solos. I can learn this thing by reading textbooks, but my progress is very slow. Many training courses are full of money. Guitar is mainly practiced by myself. If you have the money to sign up for classes, you might as well use it to upgrade equipment, which is much better than spending it on musical instruments. Electro-acoustic instruments are a bit expensive.
If you really want to find a teacher, you must go to a bigger musical instrument store to find a reliable teacher, at least it will not mislead people.
If you buy guitars and equipment, there are many reputable music shops on Taobao Tmall, and the prices are relatively transparent and fair, so you won't be cheated.
Newcomers are advised to visit the Post Bar Forum more often and do some homework before buying a piano to prevent being cheated.
Having said that, I hope I can help the landlord.