Hi@dreaves1,
No matter the NewForm() function or the Reset() function, it will always change your form to the original default mode. For example, there so many ComboBoxes within your form, the DefaultSelectedItems property you set for these ComboBoxes will directly determine how the data will be displayed after it is reset.
If you set the DefaultSelectedItems to a specific value, it will always display it after it is reset, so as all of the controls within your form.
I know that you want to clear the field once you submit the form, so you should set the Default or DefaultSelectedItems of these controls within your form.
As an example, for a TextInput control, you should set the Default property as below:
""
For a ComboBox, you should set the DefaultSelectedItems property as below:
[]
For a DatePicker, do the same to DefaultDate property as below:
""
And for the Time Dropdown, you can set the Default property as below:
""
Set the OnSelect property of the Submit Button as below:
SubmitForm(EditForm1);ResetForm(EditForm1)
Check the following Gif.

Best Regards,
Qi