I'm just wondering...

Has there been any of you (or have you ever heard of a person) who used to be a noob in Valorant (or CSGO, or similar shooters).

Meaning doesn't have good crosshair placement at all, bad peeking/swing techniques, slow response time, bottom rank, and overall very bad game mechanics.

Whom in the span of 1 year or less, grinds so freakin hard that the person becomes a top rank player with pro like game sense. (At least becomes immortal or even radiant-level, or global elite in CSGO).

I'm just curious wether this is possible or no. And what training/grinding method did that person uses.

Anyone?