Wrong Target Market?

I’m currently doing a launch for a new test-prep program I’m launching and my email list of high school students seems incredibly non-responsive. Low open rates and click-through rates. The entirety of my company I’ve focused on marketing to students because I’m a student myself. However, should I switch my ads to run in front of parents instead? I’m wondering if I’m interacting with the wrong market for my high-ticket programs.

My marketing team and I tried targeting parents once with an ad, but they were not converting or very interested on Facebook. I feel a tad stuck.