In my opinion, you should decide what you want to play, when you reach lv 50.

As a Scholar you should put every point into mind.
As a Summoner you should put every point into intelligence.

You can buy a respec tablet from your Grand Company Vendor (costs 10000 of that GC currency).

Putting points in Vita is not that useful (except for some fights), especially if you consider that every point will award you about 10 health - or was it 15? Something like that.