DO YOU THINK THE BITCOIN PRICES WILL GO DOWN UNTIL IT'S GONE ?

Btc will only bottom out if the hivemind thinks it's worthless, but objectively speaking it's far from worthless, it's actually become even more useful than in the early years. Crypto has been adopted nearly worldwide for payments already, and the fact that it's still $3k USD says a lot about the demand. There is literally no other currency worth $3k, period. That said, it's extremely unlikely it'll just disappear. The anonymity factor is too competitive despite the volatility of the currency.