Whoa, $4,000 in 3 weeks? That's insane.

Oh man, that's brutal... I had a client once who used his own free Asana board for a kitchen renovation and he set up all the task dependencies wrong. I ended up waiting on a custom cabinet delivery for two extra weeks because he had the order date linked to the wrong step. It was a mess of phone calls and angry subcontractors. DIY project management tools can be a total trap when the person setting it up doesn't know what they're doing.

Hate to be that person, but three months is probably overkill. The guy at the park wasn't wrong, but you don't need to lock yourself and Luna away for a quarter of a year. A solid week or two of daily drills in low distraction spots, then gradually moving to the park at quiet times, should do the trick. The real trick is never calling her unless you're sure she'll come, and always making the reward worth more than whatever she's sniffing. Border collie guy probably drilled that one simple rule more than anything fancy. Have you tried practicing with a long line so she can still roam but you can physically reel her in if she blows you off?

Magnetic sweeps just miss too much stuff in my experience.

Did you try reading it out loud to see if it sounds fake?