Be holy,
Firstly,welcome back
That was quite a post you wrote.
It is clear that you have alot of shame over your lust.
First you must know,you are not a bad person.
This is a natural step for someone who is a lust addict.
A wife will never fill that need for lust.
Ever.
There is a book written called "First Day of the Rest of My Life"
It is written in Hebrew but you can find excerpts on the GYE site translated into english.
The book's main character is a married man who has several affairs before he decides to pull his life together.
As he goes on the road to recovery,he starts noticing for the first time in years how truly beautiful his wife really is.
For years he thought she was too plain,not sexy,not pretty enough.
Our wives are not super models.
And they are not porn stars.
Which is really what you(we) want.
Separate lust and love,my friend.
You want love with your wife.
You don't want lust.
You will not get your fill of lust from your wife,or any other woman for that matter,even if they are a bit thinner than your wife.
You need to accept that you are a lust addict and that you want to remove the need for lust from your life.
How exactly to do that is the next step.
But for now,just acknowledge that you indeed love your wife,and you lust for other women.
Stop looking for lust from your wife.
So in answer to your quiestion:
You are not immature.
You are not crazy.
But you do need re-programming.
Looking foward to hearing back from you
-uri