Hey, I'm a pure STR glaiver on Greece and I'm around level 30 right now so I can help you out a bit. The guides here are pretty much perfect (especially the pinned ones) so it would help to really get to know them. I found this one particularly helpful:
http://www.silkroadforums.com/viewtopic.php?t=26105
Ok, so you're almost level 14, that's good. Keep on leveling up until you reach level 16. Put your masteries (Heuksal and Fire) up to level 7 and follow the guide I posted as to which skills you should add (at this point, you might not be able to add any). Make sure you get a lot of potions (more MP than HP), get a good lvl 16 weapon, then head out to the Bandit Stronghold (It's the other big place on the map in the SouthWest). Be careful of the Bandits, you want to get onto the big structure in the middle of the Stronghold and hunt Bandit Archers. With a 9 level gap, you should get 1 skill point for every 2 or 3 kills. Farm on them for a while. I farmed about 2k SP, but the hardcore farmers will get up to 50k or 60k. I'm spreading out my farming and doing it again at level 32. So farm a lot at the bandit archers and then put all your SP into Fire and Heuksal (eventually you will need lightning to get your speed). You can decide what skills you want and how you want to level. But the basic rule of thumb is that you should ALWAYS put your character points into STR. So I say, farm as much as you want when you want. Always get Fire and Heuksal, eventually lightning, but don't get Force or Ice. It's not needed for a Pure str glaive (imo). It's your character and it should be the way you want it. These are just the most common ways that people make them. Have fun with it

.