Everyone feels stressed sometimes, and it's important to have a variety of words to describe this emotion. Rather than just saying "stressed out," you could use synonyms like anxious, overwhelmed, tense, or frazzled. Other options include worried, pressured, burdened, or troubled. Each of these words describes a slightly different aspect of stress - for instance, "anxious" might suggest a sense of fear or uncertainty, while "burdened" implies too much responsibility on one's shoulders. Choosing the right synonym can help to more accurately convey the type of stress you're feeling, and can also make your writing or conversation more engaging and varied.