Great article! One thing that popped in my head was some advice from Marshall Sutcliff on the Limited Resources Podcast (odd that I listen to an MtG podcast even though I only draft about 3 times a year).
Sutcliff often will say, that focusing on your win-loss record can be misleading because there are times where you just have a metric crap-ton of bad luck. And at other times you can have a 3 kilo surge of good luck. But non of those are indicators of what kind of player you are.
Rather, the question is: At any given point during a match, are you making the best possible choices? Are you doing the little things that will give you a few slivers of percentage points? If so, then you are playing well--despite what is happening at the table. Essentially, control what you can control and give everything else to Jackson Howard.
And while I agree with that, it still sucks to lose. Even when I try to take that advice, sometimes it's hard. Does it lower my chances of tilting? Sure. But even then, there's a feeling that the Netrunner Gods are out to get me and it just feels unfair. Why Wotan? WHY?
Ultimately, I think the self-awareness you mention in the article (realizing that you are upset, processing it with other people, doing something ) is a huge key to deal with feeling down--because sometimes you can make all the good in-game decisions and Janus will give you the ole Double Faced Middle Finger.