Hi, By mistake I canceled my name in a shared window and I am unable to see my page. Now, how can I get it back. Can anyone help me.
Let me clarify. Did you remove access to the page for yourself?
If this is the case an admin can add the page back for you in Admin > Pages.
Also, depending on the user's permissions if someone else has the page still they could add you back.
I think even a regular user should be able to add themselves (or others) to a page that they own.
Try going into the admin section and adding yourself back to the page