Am I considered British if I was born and raised in England?

My parents are Nigerian, so I am ethnically Nigerian.

Basically, so I was born in Paddington, grew up in East Croydon through my childhood and lived there till when I was 12/13 years of age. When I was 13, left England and lived in Nigeria for about 8 years.

I then came back to London to reside later on. Just a little perspective into me.