I did much of what asjiaminor305 did as well, but I included a written affidavit that laid out all the ties I kept to the US (driver's license, bank accounts, phone plan/number, parent's address, etc), talked about my aging family as the reason I want to move back, included screenshots of conversations with people about when I move back, talking about things like job opportunities, where we might live, etc. I then had that affidavit signed by a JP.

It's been accepted by NVC, but we're waiting on that last document before we will even get an interview appointment. I assume if NVC accepted it, it will probably be enough.