To add onto ImoutoMaster's information and to assist a little with some further information:
1) Right now, if you can earn up about 500 gold, there's an event currently that will let you buy cheap Divine Grace Stones. You're only limited to 5 per account, which is enough to fuse a badge. They cost 100 gold each (which is very cheap all things considered) and you can buy them from a merchant in Mushin's Tower (they are a Lyn name is Junsorei and they normally sell items for Koldrak Scales). In the second tab of things they sell, the first thing should be the 5 stones. So, if you have 500 gold, this would be a very good investment as soon as possible, since they will not be available after April 22nd. I should also point out that this NPC sells Riftdawn weapon chests for Naryu Silver. If you have not upgraded your weapon at all from story (meaning it's Riftwalk or Dawnforged stage 3) and you didn't get a lot of gem slots on it, going to see this NPC and attempting to buy more copies of that weapon until you get one with 7 or even 8 gem slots might not be a bad investment either (as Legendary Gem Hammers might cost you down the road... or you can just get one fully-slotted for some Naryu Silver)
2) ImoutoMaster has pointed out the badge for the frost path (2nd spec) Soul Fighter... just so you know. Honestly, I prefer it too, but that's your call. Both are fine. If you are doing the frost path, Simple Mode is actually pretty effective just like IM said. Simple Mode is essentially a pre-made macro the game put in. For most classes, you don't need to disable any skills to use it effectively and for SF, it does what you need. All you need to do is click on the button that says "SIMPLE" above the icon for your Right Mouse Button (RMB) to turn it on. You can turn it off by clicking it as well. Simple Mode cannot be used in the Hongmoon Training Room, so be warned.
3) Your basic rotation is pretty straightforward (made moreso with Simple Mode). When a fight begins, get in close (2 is an approach skill), then press Z, F and hold RMB. Simple Mode will take care of the combo for you, but essentially, you'll see that you'll do a special flurry of attacks and every time you gain 5 stacks of chi (the blue circles), V lights up and activates automatically. Additionally, you'll see anima stacks appear (yellow symbols appearing in a circle just to the right of the blue ones). Upon hitting 5 stacks of anima, you can press the left mouse button (LMB) to release it. While anima does increase defence, releasing it will lower Z's cooldown... and that flurry mode (and V skills) is a big part of your damage output.
Now, when your Z is on cooldown, one of your best options to get a quick stack of chi/anima is to tab into your ranged stance. While it's generally weaker, it does have a nice little set of skills to use. Aim at a target and press V to do a beam of energy. You'll see that you'll get a bunch of chi stacks and at 5 stacks, F lights up. Press and hold F until it runs out, then swap back to melee stance with Tab and you can use V (or just hold RMB thanks to Simple Mode) to do another Frost Storm. Once you use this skill, it will go onto cooldown for a while. You'll be able to see on your screen when that cooldown runs out (you'll see a timer with that skills' icon). If it's on cooldown, you'll rarely want to be in ranged stance unless you're looking to do certain other skills.
When your Z (melee stance) and V (ranged stance) are both on cooldown and there's nothing else you can do, just stay in melee stance and RMB. It's a basic combo, but it will slowly build up chi. X can also give 1 stack of chi too but it's rare you'll need it. All you're waiting for is times where your Z comes back up or when your V (ranged stance) comes up.
That's pretty much the basics right there... well... maybe a bit more intermediate... but still. It SOUNDS more complicated than it ultimately is... and with a little practice, you'll be able to do it easily. Eventually, you'll need to worry about certain equipment giving you special buffs when using certain skills, but that's a LITTLE more advanced and you don't need to worry about it right away.
Anyways, that's all you really need to know for now. Good luck! =3