At this point, Bitcoin is fully mainstream and the biggest fools have bought in. People hoped that the Trump election would mean a new giant pot of dumb money (government/tax dollars) would buy bitcoin, but now that they've realized Trump will just issue his own crypto memecoins that bet is unwinding.
I don't see where the buying is going to come from in the future. Every cab driver and retiree and stay-at-home-mom already knows about bitcoin. Maybe Tether prints another imaginary 10 billion dollars to buy bitcoin and prop up the price though, so it could still maintain for a while.