What action do I take against a girl blackmailing of filing false case?

I had lent money to a girl that I had befriended over social media. However she turned out to be a scammer and is refusing to pay me back my hard earned money. She has threatened to file a fake harassment case against me whenever I asked for my money. along with blackmail Police are not entertaining the case as its a small amount. Please advise me as I am a middle class man with no extra source of income in need of money right now. THANK YOU