Can you learn ALL skills ?

[velt]

Hi good people of this forum !
First, congratulations on your wiki, it's really helping me figure this all out (since the game doesn't tell you much).

So, I noticed one thing : according to your wiki, there are 13 Active fighter skills. But in my Skill Panel, I only see eight spaces for active skills. Does that mean that it's impossible to learn all skills ?
Should I refrain from learning the lower level skills, so that I will still have space to learn the high level ones ?
I'm asking because I know MMORPG makers like to make things so that you'll have to buy reset points !