Poker is played with a standard deck of 52 playing cards.
The cards are ranked from high to low in the following order: Ace, King, Queen, Jack, 10, 9, 8, 7, 6, 5, 4, 3, 2.
Aces are always high.
Aces are worth more than Kings which are worth more than Queens which are worth more than [...]

Never forget the game objective.
Never make the mistake to think that you need to approach as close to 21 as possible.
You need to have hands higher than the dealer. That’s the key.
You win if your hand totals 21 or less when the dealer busts (hand exceeds 21).
 
You win if:
Your hand totals 20 and the dealer’s [...]

You play against the dealer. The dealer is your enemy. Cards from other players does not matter. Focus on your hand and the value dealer’s cards.