Navigate to
Dashboard > Forms > All Forms.

Here, you will see all the forms you created with their title and date of creation.

If you want to edit any of these forms, click on its title and follow the steps mentioned under the
Form Settings section. If you no longer want to display the form, select that title and click on
Remove in the top right.

Navigate to
Dashboard > Forms > All Form Submissions.

Here, you will find a list of forms submitted by website visitors. Click on View to see the form in detail.
Don't forget to Save/Update
Once you finish everything, click the Save/Update button on the top right corner.