EAD (WorkPermit)

Dear fellow waiters, dear fellow survivors of the system,

I have found this forum, hoping to lean on other's people wisdom, so I could keep my sanity.

Here is my story:
-> On 10/23 I have applied for I-765 (in NY), as part of my green card marriage application.

-> I got an appointment for Biometrics on 11/27

-> However I was applying for emergency travel approval, so they enabled me to do it on 11/07 (biometrics code 2.) They didn't receive my biometrics details for weeks and so I wasn't able to leave the states in time for my important event.

-> I then applied again for emergency travel approval for a different event. They sent me to do another biometric (now -- code 3) on 12/05 (they also told me the reason I didn't receive the approval for traveling the first time is that by mistake they sent me to the wrong biometric -- code 2 instead of code 3.) This time they did receive a clearance for my biometrics and I was able to receive my travel documents.

-> on 04/12 (when the USCIS processing times showed that they already processed applications from October) my lawyers have submitted a request for clarification of my status.

-> on 05/04 received a letter from USCIS that "this case is currently under review. You should receive a decision or notice of other action shortly."

-> 05/22 received a "Curtesy Letter To Applicant" with the following details:
An Initial review of evidence submitted with your Application to Register Permanent Residence or Adjust Status determined that the evidence submitted is not sufficient to complete adjudication for the following reasons:
* A completed and signed I-693 was not submitted.
You will be required to submit information and evidence to overcome the aforementioned deficiencies at later date. Please follow these instructions:
* If you receive an interview notice in the mail, you must bring information to address these issues to your interview appointment.

-> This is the last I heard from them. So I am now 230 days since application.

The communication with my lawyers have been terrible, so I feel in complete darkness, Could anyone advise me:
? : Is my situation sounds normal/makes sense? I am trying to figure out if maybe something is wrong with my application. Is there a way to make sure that my situation is the result of a "normal" wait time and not of a faulty application?
? : From your experience, when I can expect this limbo to finally end.
? : Is there anything (besides filing a compliment, because they don't let me file another compliment) I can do right now to regain control over the situation?

Thank you for sharing this process with me.
This has been a very long 230 days... and it is good to know I am not alone in this.

p.s. I have a friend who has submitted in August in Pennsylvania and by November she had her green card (which made me feel as if the situation makes even less sense.