Why can't I edit my View?
Users are required to have the
unfiltered_html capability. This capability is normally granted only to users with Administrator and Editor roles. If using Multisite, only Super Admins and Administrator roles have this capability.
You may not have the appropriate level of access to Edit a View, even though you're able to create a View. An additional permission is required in order for users who are not Administrator or Editor roles to be able to edit a View.
Your site Administrator can enable the
unfiltered_html capability as detailed here: Allowing a user to edit a View. Enabling this permission for your role will allow you to edit your View.