If you're using the HubSpot embed form to share HubSpot form on your page and had like to show the form again after submission, I do have a suggestion:
1. Set the form redirect to the page that the form is on i.e. if the form is on abc.com, set it to redirect back to abc.com after a form submission:
2. Additionally, if you'd like to clear out the pre populated fields, you can toggle off the 'Pre-populated fields with known values' feature. Learn more here: Create forms (Under the 'Customize your form options' section)