Ah ok.
So I just did a pool test on nice hash and it says pool is incompatible. But it didn't have the option for sha256t and only had option for sha256. However, on mempool, you can clearly see that nicehash is doing testing on testnet. So the pool that I set up doesn't work is what I'm thinking. Anyone has suggestions on to set up a better pool?
And did you tried via Miningrigrentals ? It's a little bit expensive, but for some th/s should be fine if it works with your setup.
MRR's way of working allows you to use more or less all the pools in general.
So I was able to set up an account on miningrigrentals. But does anyone by chance have a stratum address:port for me to use to mine tBTC?