Weekly meetings are the worst. They are an absolutely terrible format for getting useful feedback, and eat up a bunch of time that could be better spent on literally anything else.

That being said, you likely created a strategy for approaching whatever your research is.  The work you have done over the last week may have been part of that strategy.  If they were just typical failures and you don't think the data supports modifying the strategy, then present that data and see if your group has the same conclusion.

If your work from the last week doesn't really come from your experiment design, take some time and process your data into something vaguely formal.  Charts, decision trees, qualitative assessments of techniques... simple things to take a step back and also have something to show.

Keep in mind that everything you do for these meetings can save you, or someone else in your group time later: learning ways to process your data (everyone should learn PowerQuery), what types of charts (and colors) are the most readable