It might be a bit ambitious but setting goals really helps accomplish them.
And of course it depends on the person, I my self don't really have much trouble learning different languages.
Japanese is quite different from any language I have studied before but speaking and understanding it is fairly simple when comparing it to more complex languages.
The one thing that is extremely difficult would be the written Japanese.
Just because of the enormous amount of different kanji that is available for you to use.
Of course you don't need to know all of them but you can't just stick to the 26 letters we learned as kids and which we could use for almost every other western language around.
That being said I still find learning Japanese fun and even a bit entertaining.
I'm like a Japanese sponge at the moment
I already have a few penpals whom I mail every now and then.
I mostly write in english though but I try to squeeze in as much Japanese as I can.
Luckily a few of them don't mind writing parts of their letter in romaji as well.
I'll keep pushing my learning abilities to the limit and try and learn this in record time!
Of course with the help of forums like these and friends who speak the language
[edit]
Reply to GTJ
Forgot to get into the point MMM and you made about this.
I'm slowly using that thinking process though.
In the beginning I would hear a word, translate it into English and then continue onto the next one.
This would take so long to actually translate a entire sentence, too long if you're watching a show and a Japanese person is speaking at full speed.
Now I tend to slowly translate everything using images instead just like you would with your own language.
When you hear "Tamago" you just know it's an egg or when to greet you know which greeting to use instead of thinking up it's English equivalent first.