Unpaid Wages / Overtime in tech startup — What Are My Options?

I'm in a difficult situation and trying to figure out my next steps.

unpaid internship at for-profit company. I've been dealing with this for about 9 months now and the situation isn't improving.

I have worked at this company for 11 years. My position is exempt and I do have a written employment agreement beyond the standard offer letter.

What are my legal options here? Is it worth pursuing?

I went through almost the exact same thing.

I ended up escalating to a supervisor/manager, which cost about $1-3 but saved me a lot more in the long run.