Gilmer - I'm relieved to hear the neurologist isn't concerned. Yay. I'm sort of an only child too. I didn't get a step sister til I was 10, and we lived separately.
I resented any attention she received while I was around. I've carried a chip on my shoulder about that well into adulthood. Only in recovery have I even begun to scratch at the surface of how my behavior may possibly have been out of line.
I don't feel sorry for how I acted when I was 10, 11, 12 and thrust in a situation that was hard to navigate without any support, BUT I don't feel quite as angry anymore. AND I can rewrite those scripts when I see them playing out now. I owe that peace and serenity to the 12 Steps.
Courage - I hope the discomfort you were experiencing with folks who were offering advice has simmered down. Here you are our superstar and champion. It's hard for me to picture you struggling with interpersonal dynamics.
Walk the sober road together is a comfort.