Organic synthesis of N is far beyond most people's capacity to do. There is no accurate write up anywhere on the Internet, I've checked. And no, Chat GPT instructions aren't going to be accurate at all, the process is simply too complex. Forget about trying to figure this out yourself unless you're an extremely resourceful intelligent person.
Nitschke's one shot pot method might be feasible, video how to might be on the online only version of the PPH, (PPEH). You have to be 50+ to subscribe and it costs about
95 pounds plus tax. Photo ID is required. It would be pretty cool if someone could download the video and post it for free somewhere.