Ah, mate, that's a rough one. Sorry to hear that you got scammed. It's a bitter pill to swallow for sure.
But hey, don't beat yourself up too much about it. Yeah, the world can be a tough place but having kindness in your heart ain't no weakness - it's strength! Don’t let one bad apple spoil the whole bunch.
As for trust... well, there’s an old saying: “Trust but verify”. In other words – it’s ok to trust people, but always do your due diligence first especially when money is involved.
Remember this though... $3000 is just money and you'll make more of that. But staying kind and trusting in a world that often seems unkind? That's priceless mate! Keep your chin up!