Playing, and focus everything of mana and INT

[CyberGuy]

If you play as a Mage, would it be good to put every opportunity to raise INT and mana.

I want to have INT to be over 45 and mana over 120 toward level 25-26.

Right now I am playing a Mage at level 25 but I find that my level 3 chaos spell only do 1500-2500.
That is pretty weak. I have INT, Attack, and Defense only in the 12-16 because I devided out among the three too much.

I got beaten up badly when I reached demonis.