Phenomenon of easy games and games where you are getting destroyed. Am I going insane?

While playing T-55AM-1, I keep noticing that I keep getting weird streaks where the games are super easy and our team demolish other team, and then a streak of opposite games, where no matter what, we get destroyed.

Has anybody else noticed these kind of streaks happening? Am I just lookin for things that aren’t there? Is this intentional or just weird coincidences?