I've thought about it Tony,
best to leave things as they are, if we secede we get the
boss living locally, what a pain!
Best to have the Polly Wallies left as far East as we can have them.
Luis, I think you are going about it the wrong way, Philately was
never meant to be organised, although we spend half our lives trying.

Why not collect whatever comes your way, and see what
countries or topicals blow your hair back.
You have plenty of time, you can sell later what you don't want, and you can get started on something that will give you enjoyment for a long time, no need to force it.
If you have any hobbies or passtimes, try to match them to philately.
If you collected "Oceania" some issues would be :
Oceania :
Niue
Cook Islands
Gilbert and Ellice Islands
Tonga
Samoa
Christmas Island
Tokelau
Toga
Cocos Keeling Island
Aitutaki
Penrhyn (North Cook Is)
Tuvalu
Pitcairn Island
Nauru
Norfolk Island