Skin issues

I am beyond frustrated with my skin. I am 20 years old now and have been struggling since I was in grade 9. Nothing the doctor has prescribed has worked. I’ve tried a variety of pills, creams, 2 rounds of accutane, a special spa facial that focuses on what your skin needs, different face cleanses, toothpaste, homemade face mask scrubs, etc, etc. I don’t wear make up, except for maybe once a month if that. It doesn’t matter if I cut down on sugars and dairy. Nothing helps. And I find that my skin is getting worse than ever. I don’t know what else to do. I’d go to a dermatologist, but it will take months to even get an appointment and my time has been wasted every time I’ve been sent to a different doctor for previous issues and I’m getting sick of it.