There are many wonderful business experts on this site who could offer you suggestions and directions as to the business side of potential closure. On the more emotional side of the stress surrounding , there a few key factors to build in to your current life style to help you through. Connection with others is highly recommended ,allowing your self a space to let some of that stress de stress, ie exercise, well balanced food profile, sleep hygiene , apps like Calm or Headspace. These both offer meditations of numerous kinds, variety of meditational and relaxing music, soundscapes, sleep aids, motivational tools and stress reduction . The stress we can feel in our lives can manifest in many different ways, and those feeling a very real. A one to one chat could be helpful and if this would be beneficial please let me know. Warmest wises, strength and courage to you.