Ask any new poker player what they think are the fundamentals of playing No-Limit Texas Hold 'em Poker? The majority of them would describe it as how bluffing is the key to winning the game. This is far from the truth.
You should always keep in mind the pot amount before raising anything. This is because the bet you make into the pot will determine your opponent's pot odds., so either they'll make a call with the right odds or make a call with incorrect odds.