That doesn’t make you personally Jewish right now, but you have Jewish ancestors. There’s only two ways to be Jewish: 1. if your birth mother is (anyone who is born Jewish remains Jewish, so if ever adopted by non Jews a child remains Jewish still, because children are not owned as property by their parents) or 2. to convert to Judaism.
But that’s the position in Jewish Law (Halacha). You can still identify as Jewish, without needing to be circumcised, if you believe both that there is one God alone and that you treat other people as you want to be treated yourself. Believe in any of the Jesus stuff, the devil, etc then that’s totally incompatible with Jewish belief.
But of course for sure you have Jewish heritage, something to be proud of.