You need to start allotting some me-time to yourself and give yourself some mental space where you can switch off. Nobody is worth killing yourself for...except for young, dependent children maybe. Try and create a separate parallel mental world that you can escape to and give time to. Stress is often caused just by not giving yourself space to detach yourself in order to keep tabs on your normal life. In a sense, it's not being able to see the wood for the trees; you are, perhaps, too busy to see where you are going. "Hanging on in quiet desperation is the English way"