A friend gave me some advice once when it came to a major lifestyle choice. Choose what makes you happiest. Not what you think you should do. If you lose a opportunity for duty you may always regret it. If you choose to care for your mother because knowing that will make you happy then choose that. Would they hold the job a little longer for you? What would you advise a friend in the same position? Taking a view from a different angle helps Good luck I wish you wisdom