Powerapps Date Value in a form

Question

Hello,

I have a DateValue in a form. I have set that to current date. If I change the date and go back to the previous page and then click on the edit form again, it shows the date I have selected and not the current date. For example: If I selected 15th of September, go back to the previous page and then come back, it still shows 15th of September and not 11th of September. How do I change it back without using Reset button?
Please advice

Thank you

Kind Regards,

Tilak