Probably most of it since that is the only example I have really seen first hand. A few other things from books or friends are in there, too. There are some things I think my mom did right and I try to emulate her in those aspects. On the other hand, I see how some things impacted me negatively and I try to go a different direction without going too far the other way.
A couple of very important examples are that mom rarely hugged me or said “I love you.” As a consequence, it is still awkward for us to do either. I hug my daughter and tell her I love her daily. Also, Mom was determined that I learn to handle things on my own, often before I was ready. I was a very shy child so part of it was probably trying to force me out of that. The result was that I felt no one ever “had my back.”
My grandmother was overprotective and nosy, so my mom went completely the other direction with a mostly “don’t ask, don’t tell” policy that made me feel like she didn’t care. So, I know not to go too far overboard on doing things differently from her.