This is a test of commonsense. Complete the next sentence:

How to establish boundaries while caring for others 
Pay attention to how you feel. 
When certain situations and interactions make you feel upset or uncomfortable, ask yourself why that is. Look at how each scenario makes you feel.
Once you figure that out, you can determine your boundaries. For instance, you may feel resentment towards the person you are caring for because you feel you are being taken advantage of.