You are very lucky to have 1 block. Many small SPO are still at 0 blocks. If you have CNCLI leader log installed, you can try running that to determine if you have assigned a block. It just takes time. Below are the metrics i see on pooltool.io and they’re correct.
1 Million ada delegated will get you a block a month on average from what i’ve seen.
Here another recent post referencing minting.