My hunch is that this isn't your money, or at least much of it isn't yours. And for you to get that big amount, all you have to do is to send a tiny amount of 0.003BTC. All worth it. What's 0.003BTC compared to $19,000 anyway, right? You can even borrow it from a friend and pay it quadruple, right?

This appears to be a very common scam in the crypto market. You start with a little amount, you're rewarded a thousand times over, and you'll pay another small amount for activation. After you pay it, you'll pay another small amount for processing. After that, another tiny amount for expediting everything. After that, another little amount for approval, and then a little more for releasing, and so on. Before you know it, you've already pawned your cow.

Temper your greed, my friend. Accept that money is hard to find. That's the key.