Easy Chicken Tortilla Soup Recipe

4 cups water ▢1 pound boneless skinless chicken breasts ▢1/2 teaspoon salt ▢1 teaspoon freshly ground black pepper ▢1 teaspoon garlic powder ▢1 Tablespoon dried parsley flakes ▢3 teaspoons onion powder ▢1 Tablespoon olive oil ▢1/2 onion , chopped ▢2 cloves garlic , minced ▢3 teaspoons chicken bouillon paste (or 3 bullion cubes) ▢8 ounces salsa , your favorite kind ▢14.5 ounce can diced tomatoes , undrained ▢4 ounces tomato sauce ▢1/2 Tablespoon granulated sugar ▢2 Tablespoons chili powder ▢1 teaspoon cumin ▢15 ounce can corn (or frozen), drained ▢16 ounce can chili beans ▢3/4 cup sour cream