Complex sentence: After three years with too many assignments to allow her time to herself, she resigns but the people in charge decide that she cannot just be allowed to leave and want to put her into a safe community where they can keep their eye on her.
Split into simpler sentences: After three years with too many assignments to allow her time to herself, she resigns. However, the people in charge decide that she cannot just be allowed to leave and want to put her into a safe community where they can keep their eye on her.