1) Learn how the pieces move

2) Play along with some beginner chess tutorials on sites like chess.com or Lichess

3) Watch this youtube series https://www.youtube.com/watch?v=Ao9iOeK_jvU

Drill tactics, like practicing pawns-only exercises and others that get you to use a small group of pieces in concert and without the distraction of a full game, to quickly get a feel for the kinds of moves & patterns that are good for them, and the kinds that are bad. Then, in actual games, apply that while focusing on advancing while keeping all your pieces guarded by at least one other, nearly all the time, while projecting lines of attack as far as possible (queen, bishops, rooks). Then focus on getting good at checkmating—it can be weirdly hard to pin down a king in the late game without practice, and getting better at spotting and exploiting early mate opportunities is one of the biggest level-ups you can get, early on.

I wouldn't worry about memorizing openings and such until after you feel like you're hitting a wall with all that.

There must be at least a million "complete chess beginner" guides on Youtube alone.