Your first session
Your first session is one match and a look around: you play matchdays, and between them your players train by themselves.
Right after you found your club, Meet your team plays your first match in one click. Look around first, and it waits in the League tab: "Play Matchday" opens it to watch; "Simulate Matchday" gives you the result at once.
From your second match (the first has none), Play opens the veto first, with your bans filled in, so accepting is one click.
The attackers try to plant a bomb; the defenders stop them or defuse it. Kills or the clock also decide a round. The two teams swap sides at half time. First team to 13 rounds wins the match.
The viewer controls and reading the viewer decode everything on screen while you watch.
When you feel ready, open Tactics to shape how your five play, and use Feedback in the top bar if anything breaks or confuses you.