When readers pay for your articles, 50% of the revenue for the author will be transferred to your wallet.
Mixin Network is blazing fast. But it may take some time for Quill to submit the transactions, especially in a busy time. Usually you may check the balance changed within a few minutes.
For Etherum Wallet users, you may check your balance in your ETH wallet(ensure the token contract is added) or on the MVM explorer.
If you want to withdraw your balance to other Network(like Etherum Mainnet or Bitcoin), you can use https://mvg.finance.