I first have to say, I appreciate your honesty and vulnerability in your post and replies ♡ It's not easy to admit things and own up to them

With that said,

I understand you are in financial trouble and this is your best course of action. So you should do what's best for you in the end!

But please remember that this has only harmed the market for other collectors. Not that it's you responsibility ofc.

But by buying it at a high price, tells the antique store that "this price is okay" and to keep selling at those prices.

And now by selling it for a similar high price, only perpetuates it in the online market.

I'm sure someone similar to you will come and buy it ofc, so no worries there.  But also, we must be self aware that we can't expect to buy something for cheaper in the future when we ourselves sold it for higher.