Maybe one of your mistakes is "as same as" this one.

Here's another common mistake; it's a mix of two different patterns for saying two things are equivalent:

• × "Maybe her age was as same as me."

The two patterns are:

• as __(adj)__ as __(n)__
  and
• the same as __(n)__

You can say

• She was as old as I was.

or you can say

• She was the same age as me.

There is a little bit of a difference in meaning. "As __(adj)" says that with regards to that aspect of the noun, the two things are the same. It doesn't compare the other aspects. "The same as" sometimes means that two things are equal. Compare these two examples:

• Japan is as big as California. (while they are different in many regards, their sizes are the same)
• This computer is the same as that one. (the two computers are equal in every regard)

If you are using sentences as wrong as the example at the top of the page or the same as the one above, please stop :).

I'm looking forward to seeing you all at 三越前 soon.