It's hard to be helpful here without specifics. What sorts of jobs are you applying for at which companies? What industry are you in? What are the brands you've

It's hard to be helpful here without specifics. What sorts of jobs are you applying for at which companies? What industry are you in? What are the brands you've worked at before? What industry switch are you hoping to make? Do they get to a background check stage or no? 7 offsites to 0 offers is a pretty steep drop off but if, for example, you were only interviewing for VP of Product at series A startups in the Bay Area backed by Sequoia and Benchmark, then that's not unexpected.