Glad that you asked. Looks like you are determined to be a Pro Sezzler. So here are a few actions you would want to stay away from:
Do not miss a single repayment as it will drastically pull your score down. In fact, if you go ahead and pay early, you will be fetching more Sezzle Score.
The addition of multiple cards won’t be seen as good behavior.
Try to add only one card and make sure it has sufficient credit.
Download the Sezzle app to monitor your payment due dates https://sezzle.in/stores?category=-1