Take a little more care with how you eat and what you eat. While your diet might not be all that bad, you should be more mindful of what you put in your body right now. Illness is a possibility, but it's one you can prevent with proper nutrition and a good night's sleep. Another good idea is to stop multitasking. Doing many things at once only helps you accomplish a lot of things. It doesn't helping you accomplish any one of them well. Quality is much more important than quantity right now.