Addendum in LastChaos
In LastChaos, when you sp farm, you'd better to get all your general, passive, and special skills maxed. The special skills being the crafting skills whether you use them on not. The reason is that, down the road when you get high level you may want to reset your sp and then you will have extra sp there, should you need it. Like money in a savings account.
You can read the strategy guide and all the sections there. Such as Blog on Leveling , then Art of Warfare, and all the sections dealing with leveling (last chaos gold). Then you will gain more idea of how to play this game. Players are recommended to make a pet trainer first, and you can read the section on how to make a pet trainer. This way while you are sleeping at night and your computer is on, your character can slowly be training a pet (leveling your pet). Then get a pet to say level 20, then on Sarissa you could sell for 20 mills and start again.
Also, while you are sp farming you can slowling train a pet so you can have a level (lastchaos money) pet. It is nice to have a mount too. But depending on your patience it is possible to train a horse to level 37, while you are sp farming. But do not turn it into a mount right away. If you are still in the dungeon sp farming, then use it for a pet, as you can use the defensive and offensive skills of the pet.