Jack Napier/Joker Origin Story

Wondered What the Clown Prince of crime was like before he was the famous Gotham criminal the joker,Jack Napier had a bad life he would get bullied,Abused and depressed his parents mostly caused this his father was abusive and a drunken mess,His mother was weak and depressed (I'm gonna add in how he met harleen and i will do Harleen/harley's p.o.v too)