I'm worried my story is to similar to something else.

Hello, I'm writing a book about dragons, and I'm worried about it being to similar to Wof, the plot is similar to the second arc in wof, and it's about dragons living in kingdoms. Plus, each book has a different dragon as the POV (like wof) so I'm nervous, and I don't want to quit, but I'm not sure if I should tweak it or not, I'm worried people will just see it as a copy. If anyone has any advice or anything that would be great. Thanks