Hey there
First of all, By no means am I an expert or a blockchain programmer by any means, Just had the same issue with another asset supplied and got help from another community member, so I thought it might help.
As you can see in this post:
gadget pointed me towards swapping my aTokens on a dex like uniswap. I tried it for my arbweth that I supply and it worked. I managed to swap some of my weth for almost a 1:1 ratio to actual eth and repay some of my debt.
Just checked the ratio of AUSDT to USDT on Uniswap at it’s fairly close to 1:1 there (something like 0.5% discount)
So maybe that would help you…
Bare in mind, my positions and supplied assets where are on Arbitrum and not the mainnet but I’m assuming same process would work on mainnet as well..
Also, I had a Health Factor of 2.4 so I was ok swapping some eth out… Make sure you wont drop close to LQ zone while withdrawing/Swapping out supplied assets.
Hope it helps.