Mild parosmia more than a year after Covid with protracted insomnia

Mostly better, but still have a few post-Covid symptoms lasting more than a year. Things like cottage cheese, yogurt, fresh dill/cilantro, fresh ground coffee, plastic, vinegar….all have an off taste or smell. And while not a good sleeper, since Covid the insomnia has been life altering. I have to stay in bed around 10 hours just to be human the next day, but wake up several times during the night. And I mean AWAKE.

I take supplements like melatonin, NAC and alpha lipoic acid along with other anti-inflammatories. Any other suggestions would be helpful. This is just getting really old.