I'm ethnically a Breton-Celt, can trace my lineage back over 550 years.Are You sure that you are English, Cornwall was a Celtic country and a Welsh language was spoken through out Cornwall until only a short time ago in history being compressed into the end of the peninsular only 200 years before we were born. Could be that you are Cornish but may be of Brittonic or heredity unless an invader or migrant from other parts that could be from England Breton France Norse, Norse Irish.
Welsh was also spoken in The Lake district Cumbria, I can still remember farmers of the Lakeland counting sheep in Welsh that was in my life time and the Strathclyde area of Scotland spoke a form of Welsh also not sure when that stopped. If we open up a map there are many references to the Welsh Language throughout England, Scotland and Wales.
I do not think of myself as anything. Born in England but but even recent genealogy shows as it does in many, a more diverse ancestry than we might at first imagine. My sir name is Scots but my ancestry has many inputs along the way and few of us can go back very much more than a few hundred years at most.
Enjoy your tea without dunking the latter not my way of enjoying a drink either. I miss tea but may never regain the taste for it.
Dumnonia - Wikipedia
en.wikipedia.org
Cornish language - Wikipedia
en.wikipedia.org
I'm also English by the simple expedient of politics and geography and have no issues with the label, although I'm not Anglo-Saxon (or whatever.)