Yesterday my transaction stuck and no matter how much I tried it failed to send $Uni to some other exchange, I even tried sending 0 eth to my wallet to cancel all the pending and try again, just didn't work, when eth network clogged , no matter what you do , every transaction get difficult to do unless you pay a lot of gas fee!
I had to use metamask's speed up feature to claim UNI yesterday. When I speed up the transaction I had to use 800 GWEI as gas fees to get that transaction through. It was madness yesterday and, the miners were rewarded heftily.