I haven't looked at the Parafax build, but my sorc is based on Deltia's Igniion sorc and I can get some pretty nice DPS (peaked at 34k on a large pack once, average is 20-25k for trash pulls and 8-12k for boss). Anyways, learning any build will take quite a bit of time actually. Also, many of those builds a quite specific in gear set up, but alternatives are available. For instance, my sorc is low on AP so instead of using Rings of Cyrodiil light (248,000 AP a piece) I use 3 pieces Syrabane. The bonus isn't has large, but you have to work with what you got.
For Sorcs, and I'm assuming you are a magicka sorc, the key really is to max spell power. Right now, that almost requires you to wear martial knowledge (it truly is an amazing set and you really only need 4 pieces). And like Verve said, the VR14 set of martial knowledge is VERY expensive right now, but I get by just fine using VR 12 stuff. Other good sets are Adroitness, 2 pieces hundings rage, Cyrodiil light, and Syrabane. Now if you are not yet VR 12 or above, I'd say don't worry too much about the gear. I wore blue VR5 and 7 gear all the way up to 12.
As for stats, the aim is to get 18-20k health so you don't get one shotted in dungeons. After that, everything should be magicka. For gear priority it should be Spell power>magicka>spell crit>everything else. One final thing to keep in mind is the use and acquisition of champion points. Champion points can make a pretty big difference in power. If you are a newish 14 and don't have many champion points, don't expect the same numbers as some of the top streamers and guide writers.
In closing, don't get too concerned if you can't reach the 15k single target DPS you see. Often those screen shots are cherry picked to show the absolute best. They are achieved by running with a well organized and well geared group. Buffs and debuffs are constantly maintained, and as such the DPS is quite better. Also remember, this is a game and you should be having fun. So long as you enjoy your character and how it plays, that is what matters. If you are worried that you might "let the group down" or something along those lines (I worry about this type of thing) don't worry if you can't achieve the "perfect 15-18k DPS. 5-7k is likely sufficient for most content.