Covid positive about a month now and the only symptom i feel is terrible fatigue.. why do i still feel fatigued after so long and when can i expect it to go away?

Post Covid recovery can last weeks or even months. Varies from patient to patient and there is no set timeline established. https://www.cdc.gov/coronavirus/2019-ncov/long-term-effects.html

HAVING HAD COVID I KNOW HOW YOU FEEL. YOU ARE FORTUNATE THAT ONLY FATIGUE IS THE ONLY SIDE EFFECT. YOUR FATIGUE COULD LAST INTO NEXT YEAR AND BEYOND . HOPE YOU WILL GET VACCINATED IF NOT ALREADY. SEE YOUR DOCTOR FOR CONSULT AND POSSIBLE SOME KIND OF TREATMENT.