ADDENDUM: by 5fingers
1. When you sp farm, I highly suggest getting MapleStory Mesos all your general, passive, and special skills maxed. The special skills being the crafting skills whether you use them on not.
Reason is, 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.
2. Read the STRATEGY GUIDE and all the sections there. Read first "Blog on Leveling", then "Art of Warfare", and all the sections dealing with leveling. This will give you an idea of how to play.
I tell people to make a pet trainer first. 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).
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.