Hello dear,
The complaints mentioned by you here of anxiety, poor sleep, feeling lethargy, and mood swings point to a mental health ailment. However to precisely understand and treat your condition a face to face interview and assessment is required. Hence my suggestion for you is to seek a consultation with a psychiatrist near you at the earliest. Some medical problems like
thyroid, anemia, PCOD etc may lead to similar presentation hence some investigation may be required to rule them out. Thereafter a comprehensive management plan can be formulated for you which is likely to include medication and psychological intervention. Hope this helps you. Best wishes for your health and future..