I have a advice for you .said the doctor Try count

问题补充：

I have a advice for you .said the doctor,Try counting numbers.When you reach 改错

答案：

a 去掉,因为advice 不可数

或者改为 a piece of advice

======以下答案可供参考======

供参考答案1:

I have an advice to you.

供参考答案2:

I have a piece of advice for you .said the doctor,Try to count numbers.When you reach to .不过你的句子好像没有给全。