if i get to level 20 as a beginer (and onley then do 2nd job)

do i get 3sp on each level (lets say im a level 20 beginer do i get 30 sp to use whene i do job ADV?)

You'll have 3 SP per level + 1 for each job advance you do (3 for fourth job).

Edit: In other words, yes.

also if im level 50 il have 40*3=120 +2 sp points = 122 sp points to use :O

I'd advise not to level too much, though. You'll miss out on a ton of HP points.

ok tnx for inflighter its ok tho no?

ok tnx for inflighter its ok tho no?

No, it isn't. They'll lose more HP because they'll have HP Increase maxed later.

Get to level 30 at the most and stay there.

no one knows if points gained after lvl 30 as a beginner carry over to 2nd job

I'd advise not to level too much, though. You'll miss out on a ton of HP points.

This is just for Infighters, since they get that HP increase after 30 right? Or am I missing a secret HP formula?

Beginners don't gain as much HP per level up as other classes. You'd lose out on about 150 HP if you leveled a beginner to level 30 and then advanced to a Pirate.

If you level past 30 and advance to an Infighter, you're basically screwing yourself over even more because you'd lose out on the Max HP Increase levels.