icloud pics

ok so exactly one year ago i got a new phone. i used to have an iphone 6s and i upgraded to an iphone 11. my mom bought me the phone and she was going to give my old phone to one of my older relatives. i didn't know how icloud/apple backups worked... so i deleted all my pictures on my old phone (even recently deleted) because i thought they would've already been on my newer phone. i was wrong. i looked in my camera roll on my new phone and ALL of my pictures were gone. i didn't know how to get them back. i almost cried lol but i moved on with my life. it's been a year since i accidentally deleted all my photos and i want to know if there's a way to get them back? i don't think it's possible but i decided to ask on here anyway.