There are two kinds of ranked PvP game player:
My rank matters
And
The current match matters
The first kind are Wrong without exception about their approach to these games. They will inevitably be miserable and stressed and probably hate their game.
Only by accepting that rank is intended to fluctuate as a game mechanic and by design only a small percentage of people will ever reach the top can you achieve peace and holistic progress in your skill and therefore actually climb.