Hi @Mariela179
Your costs should include all utilities.
Regarding extra cleaning, if it is a 5 months booking, on a full house, the guest should be responsible for the cleaning of the property.
May be interesting for you to get a short term renting contract, that you need the guest to sign, where you include the guest responsibilities for those 5 months.
Also, go over the property with the guest, taking pictures of the state of the property, or a video (where the guest appears), to ensure that they agree with the state of the property and that any damage will be charged to the guest.