Adjustment of Status - I-485

Hello everyone! I am really happy to say that my GC is being produced as of now!!! I always dreamed about the day I would come here and write about the end of my journey, because this forum has helped me a lot!!! So this is going to be long but please read it because it might be of a help, especially if you had RFES. I came here on an F1 visa, but had a J1 visa that forced me to go back to my country for 2 years, which I did. This is relevant later.
My husband is a USC. We got married at the courthouse on May 2019, and had our reception August 2019. We mailed our application and the USCIS got it October 17th. We mailed forms I-864, I-130, I-30a, I-765, I-131 and I-485. For our proof of marriage we didn't include much evidence other than the marriage certificate, the lease with both our names on it, and statements of our joint bank account. I sent (together with other documents) an employment letter from my employee in my home country showing the dates that I worked there, to prove complacency to the twp- year home residency for the J1 visa.
Although USCIS got our forms on October 17th, we didn't hear from them FOR A MONTH AND FOUR DAYS. I called them 7 times and my name wasn't on their system, so we thought they had lost our package. We were getting ready to mail another package when we got our receipt numbers after calling for the hundredth time early one morning. Then on December 9th I had my biometrics. After that, radio silence until January 15th. Around that date, we received a RFIE, and I want to tell you what it was and how we tackled it because it was a very common RFIE.
The RFIE was asking for a joint sponsor, and my birth certificate. And it was our mistake for not providing them with the right documentation to being with. My husband made way above the poverty line, but instead of sending the tax RETURN transcript, we sent the tax ACCOUNT transcript. So even if your sponsor makes above the poverty line, if you don't send them the right transcript, USCIS officers think "Oh, they didn't send the right transcripts, let's just send them a RFIE and tell them to get a joint sponsor": So make sure you send the right transcript.
About my birth certificate, I had it translated in my home country (and notarized), but some translators do not know how USCIS works, and she made a legal translation but it's too complicated for USCIS to read. Too much crammed information. So I paid a translator here in the US, which has experience translating birth certificates for USCIS. And he has somebody notarizing them. Was worth the money.
So, for that RFIE (since they were saying that the sponsor didn't make enough money) we also included six months of paystubs and an employment letter. Once we had all that, we put the package together: the RFIE copy letter on top, a cover letter stating the content of our RFIE, and all the documents that I told you, with undertabs. Being organized is key. Also, keep a copy of the package you sent them.
About a week after they received the RFE, they changed our status to "RFE received and we began working on your case". Then, two days later it changed to "interview ready to be scheduled" and TWO HOURS LATER it changed to "interview scheduled". This was February 7th and we had our interview March 18th. So we started putting together our evidence. Notice how I say "putting together" and not "collecting" because we started collecting evidence way before the interview.
We prepared two binders for evidence to present at the interview: one binder was the originals, and the other binder was the copies. We divided each binder into three exhibits:

Exhibit one: proof of relationship
- Marriage certificate
- Emails between me and his mom throughout the years
- Guest cards from our wedding
- Car insurance
- Health insurance
- Vet bill with both our names on it
- Amazon Prime membership
- Two affidavits from friends here in the United States and one from my mom. The affidavits were not notarized, but we got templates from the internet. They're there. USE THEM

Exhibit two: proof of financial comingling
- 6 months of bank statements
- Me as an authorized user of his bank account
- Joint tax returns

Exhibit three: proof of cohabitation
- Joint lease. Our landlord pays for our utilities, so we had him write a note under penalty of perjury saying that (because we don't have any utilities on our names)
- Random mail coming to our house
- Photocopy of DL showing the same address.

Wedding album
A photo album with 54 every day pictures, with dates and places written on each picture.
In the front pocket of the binder, we also made a cover letter with an index for the evidence. We also put a side tab on each document so it'd be easier to find during the interview.
The day before the interview they called us to cancel it, and they said they'd reschedule it. Around April 4th we received a letter from the FO (Pittsburgh) asking us to send proof of bona fide marriage with a deadline. So because we had it ready for the interview, we just put it together, added a copy of that letter (per their instructions) and mailed it, signature required. They received it on April 14th, and today we got the wonderful news that the GC is being produced!

I am sorry for the lenghty text, but I just wanted to be of help to anyone that's undergoing the same process. I will be around for a little while here, so please feel free to reach me with questions. I know this process is frustrating but please, please keep praying and let God work. Just yesterday I was getting worried and I told him "I let it in your hands" and today I got my good news. He listens. Blessings and stay healthy!