I know there are a lot of similar questions: but I will describe my problem as simply as I can.
This is the app I want to migrate.

This is what happens when I type in makemigrations(after I add a field in my model)

This is what happens when I type in showmigrations(after I add a field in my model)

I have reinstall django using pip, I have created new app , I have created new project,new venv, I even have reinstall python itself, all same story. I suspect my django source code has been corrupted, but when I install django using pip, it use file that is downloaded before instead of download new file. Trust me, I have tried all the way a newbie could possibly tried, could someone tell me how to redownload django itself or someone who is way smarter than me know what's going on right now. Thx!

app/models.py?