Lol do it Rob.
I'll help you along the way
And to note with the proper build at lvl 20 my MAX atk was roughly around 250
Oh and skills
You should cap double stab at 10 points and save the rest till lvl 20.
DONT USE THE THROWING STAR SKILL DX
You wont be able to get triple slash later on.
Afterwards once you make the first dual weilder job you have AP to work with acdordingly to what you want to do.