Look at the results people are posting from ED1 rounds. Please considering looking at some other options to use EDII or decide if you need to EDII since it is binding and you may want to compare options. With no test scores and a lowish GPA you are probably not positioned for success at the highest reaches.
WashingtonU sends so many mailings and emails they make everyone feel like they have a shot.
Look at other options that meet 100% need and have admissions more aligned to where your GPA is. Do any matches or moderate reaches have EDII or EA?
Here are a few others to look at -
RIT has been very generous with merit offers to URM females and their engineering program has a lot of great opportunities.
Lafayette or Wellesley could be possibilities - both meet need.