I had counselling in the past. I have in many ways accepted my childhood for what it was. I have kind of forgiven but I certainly haven't forgotten. The favouritism is still apparent though I have turned spotting it into an amusement for my own sanity.
From the outside my family probably appeared normal. We had a nice house, in a nice place but I wasn't the only one damaged by my childhood. It's evident that my siblings didn't come out of it unscathed but I got treated really quite badly, for no apparent reason, in a way my siblings didn't. I did well at school. I was never in trouble. I was well-behaved, though I didn't always react well to the way I was treated.
Ironically I am now in many ways closest to the parent who treated me worst. It's not an emotional closeness but I feel I have responsibiities to them that my siblings don't bear the burden of. That concerns me. How have I ended up in this role when my siblings who didn't suffer as I did have walked away? Also, why does my parent still display negative behaviours towards me when in many ways they need me around?
Also, having DC myself I really cannot understand how I was treated. I wouldn't cause the suffering inflicted on me to anyone, never mind my own child.
I'm aware of the toxic families threads. I was just interested to hear from someone who had been treated very differently from their siblings as I've never met anyone IRL.