Is it I751 status or N400 status?
When did you file the N400?
I’m not exactly sure about the N400 process, but based on some other N400 filers posted, they should be reviewing both of your applications together and most likely will schedule you a combo interview, which means you won’t be getting the 10 yr green card, instead you’ll become citizen directly if you pass the interview.
You can check the processing time here:
https://egov.uscis.gov/processing-times/
From what I’ve seen, the processing time for N400 varies greatly between different field offices.