24M Exhausted, No Sleep Apnea, Thyroid & CBC Looks Good

Now what? Just learn to live with being exhausted? I always feel drained. I have now had a sleep study, blood tests, and got on antidepressants (lexapro) but am still exhausted. I miss how I used to feel, energetic, outgoing, and always wanting to do stuff. Now all I want to do is sleep, I feel heavy and drained, have no energy and yawn all day even if I sleep 10 hours. I believe lexapro has helped my anxiety and depression some (although not 100%) but could this all just be anxiety and depression?

I was hopeful my sleep study would say something because I just want an answer but all I got was “borderline results” and that I can have an in-person study done if nothing changes.

Please help!