Oh no! First let me assure you that I will be sending out prayers and good vibes twofold. What happened to cause the collapse. Was it another business? A broken pipe? If insurance doesn't offer anything (even if they do). can you recoup money from the owner of the building (i.e. sue him) or who/what ever caused the damage?
Oh and let me say it is not that you have nothing. You have a great talent as a dog groomer, and I am sure you have a loyal following of customers. You shall get past this.