I agree with @blossom that you need to make sure that you apply to at least a couple of universities that you would be willing to attend, that you are confident that you will get accepted to, and that will be affordable. We were able to find schools that cost no more than $40,000 per year, and if you have stats that make you competitive for Duke you should be able to also.
I am finding myself wondering whether the pandemic will put other families in a similar situation where they had to make a hardship withdrawal to make ends meet, which puts them into a high EFC, which puts them in more financial difficulty. I would discuss this with the financial aid office at Duke, in addition to finding some more affordable schools to apply to.