How can i avoid a 3 or 10 year ban after overstaying a visitor s visa to spend time with my LPR husband?

I m trying to get a new lawyer because she s not good at explaining, Im not sure if I was scammed. I entered on a B2 visa on july 30, 2019 and married a LPR on august 14. Our lawyer delayed the filling so our priority date for I130 is Sept 3 but my I94 expired on august 30. She made me pay for 2 money orders for USCIS a 500 and something one, and another one for 1000 dollars. Idk WTF the 1000 was for, she didnt apply for an extension on my i94. Now she says I cant leave the USA, but I fear a ban if I overstay for over 180 days.