Been mining on the official pool, wallet balance still showing 0
Is your due balance on pool.tesoro.network lower than 0.3 TSX? There is a payout threshold of 0.3 coins.
I think that may be the issue, sorry, brand new at this. Is there any way to check how much due balance there is?
Yes. On pool.tesoro.network you can paste your mining address next to miner address and see the due balance.