Well, I disagree that leaving one's wife because of a difference of opinion on some topic is a good idea; that type of advice should be sought from an accredited specialist in Australia. I agree that it would be useful to let others know the general nature of the scam that caught you so that others can benefit from your mistake. My two cents otherwise:
1) Every day there's some rash person who wakes up and thinks that they're going to be the one to solve the Bigfoot/Yowie question in one week where others have failed doing so over decades. I know; I see that idiot in the mirror every morning. Pull back from the emotional attachment some.
2) The best advice is from Cliff Barackman (whose podcast Bigfoot 'n Beyond includes some episodes focused on the Yowie). Go in the woods with family and friends and enjoy yourself. If you don't see a Bigfoot/Yowie, you've still had a good day. If you do, that's just the cherry on top of the sundae.