How do i become “cold” (ik this is cringe asf im aware”

[.hk7k]

So idk u read my other post but a recap is So theres me then my brother im always helping around the house helping with big stuff im 16 btw and my ilder brother whos 21 works remote job from home lives with us pays for nothing he has 0 responsibilities 0 stress and she just dont love me the same he helps nothing around the house btw he works 4 hours remote from his desk a day hes on a 1 month long break rn she loves him more says hes the best and i kid u not shes never shown me affection but what im saying is why does he “win” when he does nothing and bro im so fuckin nice to my parents i litrally offer to make their life easier and do stuff for them but yet she treats him like a king and me like a peasant this aint a vent post its just wtf why i want to know shes says to me “hes doing something with his life” and btw im just 1 year behind in school thats all, she also never lets me go outside apart from school my theory is she hates my dad and i look alot hell of alot like him so shes taking it out me wierd ik, but the point is hlw do i become cold no matter what i try my hardest and say to myself im gnna be cold today but i give up and jus be nice bc me being cold towards her doesnt sit right with me shes my mother but she doesnt feel the same way like why man jusy fuck shed make shi a heck lot easier if shes was a normal mom