Ask your therapst to help put a plan together with your parents to better manage chores. No one likes to have unexpected work thrown at them with the expectation to drop everything and get it done immediately. Chores are important - the work has to get done by someone - but it doesn't have to feel like slave labor. It sounds to me like you don't mind doing chores .. its just the delivery of the message.

Hang in there - I hope your therapst can help