Hi veteran pirate101 player here, I have a near max lvl (Bold Ryan Richardson) if you want my opinion, it depends on your play style. If you like to heal and bomb use your practice points on to boost your spell power. If you do that also use some in so you can have higher armor and a melee attack for getting to the other side of the battle faster. This style is most useful is you have gear that has heals and bombs and a smash and slashy weapon or a staffy and slashy which is better for a but a whole lot harder to find than smash and slashy weapon. The other style is if you like to act like a and be in the thick of things. Put skill points in like the other style but instead of put the rest in to boost your damage and the amount you can move around plus sneak attack. This style is most useful when you have gear that gives you attacks that can't miss like sneak attack and the attacks that doubles the amount you can move and one makes the unlucky target's accuracy spit in half the other lets you do another attack and one does both. You also would need a smash and slashy weapon you could do a stabby and slashy but it wouldn't have as high damage due to the fact that it uses agility and the bace damage isn't as high. They're is another style but I can't help with that one due to the fact that I haven't tried it. I hope this help
This is only using 18 PP so you would only need to do 4 Zeke quests. You can use the last 3 for whatever you like or just save them in case of future updates where you would have to buy a reset otherwise.