Certified, degree, experienced, yet having trouble moving up Hello ITCareerQuestions.

A little about me:

I have 3 certs - CCNA, Security+, and Healthcare IT Technician. I have an associates degree in information computer science. I've worked in IT, mostly part time as a side job, for about 6 years. I moved about a year ago and took a job working full time as customer-facing IT support.

I want to do something more challenging. Specifically, I'd like to do network administration. I have applied to many job listings for net admin work, but haven't heard back from any. I am fairly certain that experience specifically in network administration is what I am missing, but I'm not sure how to get it since I can't find any networking jobs that will call me back. I have a home lab set up and I'm confident in my skills, but I haven't gotten the opportunity to demonstrate that to a potential employer. What should I do?