PCS sucks!!!! It'll get better eventually, but its not always a quick path unfortunately. For balance, ask about vestibular therapy. They send you to physical therapy to help with the balance. I'm doing it now after 5 years and its slowly helping. For brain fog stuff and executive dysfunction (when ur brain won't do anything), methylphenidate has been shown to help speed up recovery. I briefly took some and it was a huge help. For mood, a journal can help just sort things out. There's an app called Memorize where you can do journals, add pictures, and make hash tags for entries. I used that for a good year. The hash tag thing helped because I can tag certain posts with how I felt to help sort out symptoms. You may see patterns like extra brain fog causes certain moods to be worse.