You work for yourself so if you feel you need to take some time to have a holiday, then you should. Self care is important. You will feel more refreshed after a break.
This means you will need to put aside money into a savings account to pay for your expenses when you are not working.
To communicate this to Clients and to PetCloud, you need to block out dates in your calendar you are unavailable. If you have recurring jobs, you need to inform Pet Owners with prior warning about your plans.
You may want to plan to take your holidays in low season, and not peak season when the biggest pet sitting earning opportunities are around.