got scammed by seller (not agent )

it's my fault for not properly read the S&P before singing

house already completed in nov 2022.

so my house considered subsale.

fking agent said it's not subsale house

seller verbally told me that there is warranty period for home 1 year
but i never checked in s&p before signed the document.

after defect inspection ,there is hollowness in car porch and dining hall.
also there is uneven plastering all over the house

passed the defect report to seller.seller asked to pass the document to developer general manager

developer dont wanna repair it.saying once bought ,i already accepted the condition as it is.

fucking seller wanna push the blame to the developer
the seller is the developer's director son

yeah i know im so stupid for not properly read the s&p
cant believe how stupid i am for not properly read the s&p