Week 13 disaster

I have been working on a revit file for the past 2 weeks, however 3 days ago i lost the file and was not able to retrieve it. I had invested a lot of time into doing so. this has been the first year i was planning on making a digital submission as in previous years i usually hand draw and make models of all my designs. this has taken a huge toll on my expected outcomes i am now under a lot of pressure to produce something in a short period of time.