Keep writing. Just means it hasn't found the right person yet and there's thousands of reasons for a rejection beyond its quality. I had a rejection from an agent who loved it but already had a lot of other books in the same genre so she suggested I resubmit to the entire agency. I had a publisher reject one that was already a multi-time bestseller and award-winner. At the end of the day, it might not be a fit for them and they might not be a fit for you, so keep going until you find one who is.

One of my all time favorite fantasy series The Licanius Trilogy by James Islington was self published because of that exact same reason. And just read his reviews - his books are a masterpiece 👌 Don't give up 🤗

Keep trying .