If I want to talk about a friend of mine who studies psychology, can I say following?

> 
> 心理学を専攻している私の友達。
> 
> 
> 

It sounds like I'm the one studying shinrigaku.
Then I could say

> 
> 私の心理学を専攻している友達。
> 
> 
> 

But it sounds that I'm talking about "my psychology", even if I now it doesn't make sense. So how could I translate the following nominal group ?

> 
> My friend who studies psychology.
> 
> 
>