I tried to draw a self portrait. My sister did not recognise me from it. On the other hand, my children said it looks just like me. Maybe my children are more used to seeing me angry… It is surprisingly difficult to draw and watch the mirror at the same time.
Now I understand why famous painters so often painted self portraits. Your own face is always there to use. And you can do anything with it without the “customer” getting angry. Plus of course it teaches you a lot.