What is the best way to deal with stress and anxiety?

Learn ways to deal with them. Some find peace through exercise or yoga, Some find learning the required skill set from a life coach/therapist a productive method. Many rely on medication which I find a worrisome practice since it seldom helps more than a modest amount.

Have noted best outcomes if aggressive proactive approach. Cognitive-behavioural therapy works well but takes time. Biofeedback can help desensitize within 6-8 weeks. Learning meditation and practicing regularly is truly valuable. Exercise, yoga, Tai Chi to also be considered. I too feel medications are more problematic over time than worthwhile and would avoid if possible.

It is not feasible to provide a meaningful opinion without taking additional history, physical examination and may be some tests. It would be prudent to see your doctor and discuss if you may be depressed. Counter-intuitive as it may seem, exercise may help. Start with low intensity exercise such as walking and gradually increase the intensity as tolerated. Drink more water. Wish you good health!