Being a freshman,my study habits are not very good 请问哪错了,

这个句子有三种改法.说的都是一个语法.即现在分词.现在这个句子用现在分词作状语,这时一定是主语是这一动词的发出者.现在显然不是所以可改为 Being a freshman,I don't have good study habits.或在分词前加上逻辑主语 I being a fresh man.my study habits are not very good.
其实也可改为复合句 Because I am a freshman,my study habits are not very good .

逻辑主语my study 不能发出being a freshman这个动作，所以错了。
改为：
Being a freshman, I haven't got very good study habits.
（作为一个新生，我还没有很好的学习习惯。）