HOW I WAS SCAMMED...By a lady

One day, when I was in America, then I was new to f*******:, so one lady (helena) sent me a friend request in which I accepted after 16 hours. we started chatting and I saw the beauty in her eyes, unknown to me that she's a scam. I showed her love and she accepted my request that we should be dating, 5 hours later she asked me for A steam gift to pay for her internet. I firstly had a thought on my mind that, Steam gift card were made for games, but for the love I developed for her, I sent her $200 of steam gift card. Then I started to trying to video call, but she never pick it up, I asked for her number and she didn't give me, she later took me to her hangout and then asked for another $300 for her transport from ohio to los angeles California and I told her she must firstly talk to me in camera before I can send her anything else , and since then she haven't talk to me again.. Since then I've learnt my lesson. All that glitter is not a gold.