Take this opportunity to recharge your batteries. An introvert like you needs prolonged periods of solitude to be happy. You become irritable when you overextend yourself. Going to parties becomes a game of diminishing returns. What's the point of socialising when you can't smile, laugh and enjoy the festivities? The next time someone invites you to a get together or asks to join you for coffee, you should graciously decline. Right now, the priority should be rest and relaxation. Enjoy a movie marathon while wearing your most comfortable pyjamas.