Glad to hear your enjoying the monitor. it took me about 7 or 8 months aswell to get a good one after having so many of the LG ones that all went back.
Regarding xrite its really easy to use with the software. Just make sure you installed the Pantone color manager aswell so you get the xtra colour patches when you calibrate.
All you do is basically boot it up the i1 software..Make sure you have the i1 connected.
Under user mode make sure Advanced is ticked and not basic.
At the top left click on profiling.
On the display settings page make sure underneath your monitor its set to white LED.
White point should be Illuminant D65
Lumincance should be set to how bright you want the screen. I personally went with 120 but that maybe too low for you. I think 120-150 is a good choice personally.
Leave contrast ratio at native.
Don't tick Flare correct or ambient light smart control.
Click next and you should be under profile settings.
Make sure Gammeais set to 2.20 and the only thing you should change on here is the ICC profile version to Version 2 as version 4 can be abit buggy.
Click next again and you should be on the Patch set page. I personally use the large patch set which takes about 7 minutes and is supposed to be more accurate but you can use the smaller ones if your short on time.
Once you've done that click the start measurement button underneath the patch.
You will then position your xrite in the center of the screen and it will give you the options of altering your RGB values...contrast...and brightness manually which I did to get them as accurate as I possibly could and then let the program do the rest. Or you can just let the program do the whole thing itself but then that might not be as accurate. You basically Need to get the RGB colours as close to the center line as possible and the numbers underneath to match the recommended 6500k settings. It will guide you through it all.
Once you've finished with the calibration and its stopped click ICC profile...You can change the file name at the top left if you want and then click create and save profile.
Once that's done it will give you the results of the measurements and you can see how accurate they are. Its worth doing this a few times to get them as accurate as possible plus the colours will shift over time since its a new panel and you have to run it in for a while first. Once you've finished and your happy with your profile open up the colour management settings in windows and under devices make sure your monitor is selected and make sure the default profile is the one you just made.
That's all you need to do
Hope that helped.