equal love

My name is Jeremiah. I was adopted when i was 4 from a abusive home of neglect and child endangerment. I have 4 other siblings. growing up hasn't been easy I was inn foster care off and on for about a year as 2 year old i don't remember much of my bio parent some times when i sleep i get these images of past events that where very traumatizing. I grew up with my adoptive parents life was great until the baby was born then they started to treat me different and the baby's name is Cayden and when he growing up they would spend less time with me and him more stuff and then one day me and Cayden where sledding and he slipped and then he was crying and then all he had was a scrape then i got him a band aid and then my adoptive dad came blamed me for him getting hurt and accused me intentional harm and i told him he slipped and i helped him up and then my adoptive dad spanked me i was 6 at the time and when i told my adoptive mom it was like i was the bad guy but accidents happens but ever since that day they treated me like dirt and him like royalty.there was this thing at my school and some was adoptive kids cant do any thing and we are the worthless and i told him that he didn't know what he was taking about then he punched me at the time this was in 6th grade and what i did is and i get really offended when some discriminated people like me so i punched him but violence is never the answer when my parent got the call that i got in a fight they where angry at me and punished and my adopter dad smacked my face so hard that he left a mark for days and it hurt so bad but when told them why i punched that kid they apologized but u can never take a hit back what I'm trying to say is never do what my adoptive dad its wrong favoritism is wrong love each kid equally