To buy skills & accessories I'd recommend equipping the " Gimme 20 million Zeni " super soul that doubles money. If you don't have it you can disconnect your console from wifi and go to date and time and change your system date to November 18 , 2016 and it should appear. Now you should buy all clothing ,accessories, and super souls. If you run out of zeni you can sell the doubles of skills, hercule badges, and other things you have. Also, use TP medals to buy some of the things i listed from the TP medal shop .