2 Basic fingering, which is more important at this stage, is mainly to recognize notes. It is recommended to seek professional advice. Music college students or ordinary music teachers can do it. Don't think about this step yourself. If the fingering starts to be wrong, you will encounter serious problems. You can refer to the online video (Lin Wenxin's basic piano course, Uncle Song teaches music Part III).
Step by step, first practice the piano fingering (it is estimated that it will take about half a year). At this stage, every three or five times, find a friend to watch the finger-playing hand shape, or record a video and send it online for netizens to help see the following hand shape. This stage is very important and boring.
Consolidate and improve, practice Hanon, every day.
After these four stages, I can reach a satisfactory level. Finally, I still want to say that it is best not to teach yourself the piano. If you are satisfied, please adopt it. If you are not satisfied, please continue to ask, thank you, typing by hand is very hard, hehe.