nobody can help you except you yourself 这句话帮忙分析一下句子成分主语,谓语,宾语

nobody can help you except you yourself
nobody 是主语；can 情态动词；help 谓语动词；you 宾语；expect you yourself 因为help后面可以加双宾,所以这个短语是宾语补足语；you yourself 是同位语,起强调作用.