You need to try again and stick with it - no giving up. My LO pooped his pants yesterday after 7 weeks so it’s a rollercoaster. You can’t give up - make sure you have the support of nursery etc. I would leave till new year - assuming your house is busy over Xmas with too many distractions. You need to make it fun - stickers, reward charts, potty books, potty toys. His own funky toilet roll. Get a fun potty - we bought one that looks like a mini toilet which was a game changer!!!! He loved sitting on it when we went too :)
I’d say skip pants and just keep him naked from the waist down. It took my little guy a good couple of days of being naked to get it, I think wearing pants mimics the sensation of a nappy and confuses them. Whatever you do, when you start, keep consistent and don’t go back to nappies! You got this!