Yeah, how old is this guy? It's going to take time. Main thing is don't add extra stress. Maybe do the practices for short periods on a daily basis. For right now I would just let him de stress in his enclosure for the next week or more. Only go in to change water and spot clean. I wouldn't handle him for about at least 10 days. Give him a extra hide and wait for now. You said he ate two mice so he should be good for the next 10 days. Relax and wait for now. Just IMO .