As I remember, you can't file the I601 until you goto the interview and they give you permission to file it. You need the instruction sheet from them. Its very difficult to get an expedited waiver. Your long wait isn't a reason to expedite. I suspect the Trump admin is finally taking a long look at all applicants. They are not obligated to hurry, especially with that caravan coming. I would even bet the timelines will get even longer. When DACA first started, it slowed everything down because the USCIS made those the priority.
If you file another I130, it will just get flagged because there's already one in process. That's a waste.