Hello Ma'am, from your query, mood swings, sadness, anxiety symptoms, it looks most probably like depression but a definite diagnosis can only be made after a thorough history. I advise you to visit a psychiatrist or psychologist and share your concerns rather than just suffering in silence. Also try to share it with any close family member or friend. Timely intervention is required before things become any worse.
Next Steps
Psychiatrist or psychologist consultation.