Oh my, you dived deep into this topic. Everything you said resonates with me.
When I attempted my first suicide I did leave a note saying my daughter should be sent to her father.
I had three failed attempts which were impulsive. The finally one, I secretly planned to end it all, including my 3 months old baby when my parents thought I was getting better.
Thinking about those times hurts. I wish I could erase it from my memory.