Laptop funds

Hi everyone. So, a week ago I put my MacBook air up on Facebook marketplace to sell, and I had a lady interested in it and she then bought it for her "son". I shipped it out overnight as she requested and I paid $60 to do so. She told me that I would get the money from her that same day, so I didn't think anything of it. A few days go by and I still hadn't received my money, so I messaged her about using a different method of pay, but she refused and said that me not getting my money wasn't her issue anymore. On Thursday things started getting weird and I had come to the conclusion that I had been scammed and wasn't going to get my $600 to buy my new laptop for school and I was out of a laptop all together. I am still in school and don't have a laptop to do my school work anymore. Facebook can't do anything about trying to get my laptop back and neither can UPS. The whole Facebook account was fake and from the way the messages started going, I am pretty sure it is an older man whole stole it from me. If you could donate anything, that would be amazing and if you can't, a share would be just a great. Thank you all!