how do i set the team that every person will be in one team when they join?

i want everyone to be in only one team (all players go into different teams currently).

and how to i make myself or join a different team separate from the team everyone else joins?

i have not tried scripting because i dont know to move players into another team

I think you were saying that you want to be on a separate team than everyone else that joins. So you could do a script that when a player joins it checks for you're name and if it matches it puts you on a separate team.

game.Players.PlayerAdded:Connect(function(player)
	if player.Name == "puturnamehere" then
		player.TeamColor = BrickColor.new("Really red") -- put teamcolor here
	end
end)