SotA Combat & Experience for very beginners

I'm a beginner too in some ways here, so stick with me. Until now I've not gotten this deep into SotA combat myself because I don't like to grind when wipes are taking place. I did want to restart my character to underline the experience point draw and gain along with training skills but I've put around 40 hours into it now and I'd like to test more at this level, so I didn't re-start.

This video will attempt to explain why many of us new players begin to see a loss in experience as we start out and increase the amount of skills/glyphs we're using as we actively and passively use them.

If I'm completely wrong about anything or this isn't straightforward enough, give me the feedback I need to make it better and I'll fix it. I've just seen a lot of talk about the experience and thought I'd try to pass on what I've learned in the past few days.