It sounds like you're feeling overwhelmed with your schedule and the demands of schoolwork. It's understandable to feel tired after a long day of classes, especially when you have other responsibilities waiting for you at home.
Taking breaks can indeed help improve your focus and overall well-being. Perhaps you could set aside a short time after school to unwind—maybe a quick snack or a few minutes of relaxation—before diving into your homework. Balancing your schoolwork with personal responsibilities and self-care is essential for maintaining motivation and energy. Have you considered discussing your schedule with someone who can help you find a more manageable approach?