Share 'How to get into my first Art Fair??'

Hi all, I have done a few "craft" fairs that were not juried, they were fun and I sold many small items. I however want to break into the art fair market with my glass work as I enjoy making larger "art" pieces but do not have a market in my rural area. I have pieces in a local art center and they do well. I have applied to a couple art fairs but was declined. What am I doing wrong and how do I g…