I really like the templates but the only thing that I'm unable to do is

I really like the templates but the only thing that I'm unable to do is editing my name I'm photographer and I'm unable to change prices and my name in some of the booking forms I must say is frustrating that not even a video is showing in how edit this wonderful templates, very disappointed with it

Once you click on Use template, you'll see the form on edit mode.  If you are not on that mode, you can get back by selecting the form and clicking on EDIT FORM

If you want to set up the email notifications, simply click on EMAILS

You can check this guide and the video in it, for more details https://www.jotform.com/help/147-Adding-an-email-confirmation-field