Where can I go to learn to use my sling?

[manimgoindown 1]

I bought a Magpul MS4 sling and a magpul stock (dont have my FID yet but went to a class in PA and LOVED it). Can somenoe teach me how to use a two point sling? This thing is CONFUSING . I dont think this magpul combo was smart for my FIRST build

[USMC1341 36]

My guess is somewhere on YouTube. That sling looks like something that would madden me... lol. But I'm not too opposed if you've already put the money out. I'd just run it as a two point and forget about the option for a single point. Sounds like a nice to have, but I can't see the need to switch between the two myself.