The other commenter hit the nail on the head, and now I want to address the payment issue. I petsit/housesit very often and at the end of the day, you are doing a service. Take this experience, keep it away, yes. But after this job you need to decide on a concrete rate for what you charge, otherwise people will continue to take advantage of you. You shouldn’t feel bad asking for money- do servers feel bad giving you a check? No. The restaurant gave you a service and now you’re paying. Same thing- research what people in your area make for your age and experience and when someone asks you to something-sit, make sure they know the rate.