Are there some things to prepare my home when I am away

Yes, when you are away, your home becomes more attractive to pests.  The lack of activity makes it safer for pests to inhabit.
Look for knaw marks in the wood surfaces or eaves
Look for nestings around the outside in the vegetation.
Inside – look for knaw marks, chewing, droppings or urine stains.   In particular, examine fabrics for possible nestings.
Listen for any activity in the attic.