Is it hard to sell USDT?

Excuse me, I'm a bit new to the world of cryptocurrencies. I've been holding some USDT for a while now, and I'm wondering if it's difficult to sell it? I've heard some rumors about liquidity issues and market volatility, so I'm a bit concerned. Could you possibly shed some light on this matter for me? Also, if it's not too much trouble, could you recommend some reliable platforms or exchanges where I could sell my USDT without any hassles? Thank you so much for your time and help.