There are at least two ways you can modify your Gmail address and still get your mail. You can set up filters to automatically direct received messages to Trash, apply a label or star, skip the Inbox, or forward to another email account.
The danger of the trailing dot in the domain name
There is a such thing as fully qualified domain names, so each domain name in fact has a dot at the end. Maybe you are even not aware that your website is also accessible on domain name with the dot at the end (for example www.likebtn.com and www.likebtn.com.) as browsers allow to use both ways.