There are a couple of reasons why your wallet might not appear on the dashboard. First, our dashboard updates every hour, so it may take a little time to show new delegations. The second might be, is that your wallet must have at least 5000 ADA before delegating to the NOVA stake pool. If you delegate with less than 5000 ADA and then add funds to meet the category requirements, your wallet will not be displayed on the dashboard and won't be counted for the BOOSTER campaign. Ensure you have the minimum required stake before delegating or re-delegate after matching the criteria (you can do this in the next epoch after your first delegation)