I am also jealous of people that won hundreds of BTC on gambling sites.. so I always try to bet and see if I get lucky enough.. never happened.
Don't get jealous by others wins, if you gamble like others you will only lose. those who win huge probably would gamble again and lose.(only smart ones withdraw their winnings and never gamble)
Yes, it must be a great idea to be smart, join gambling sites earn there with faucets and other ways they provide for free earnings of bitcoins, and then play with those money, if you are expert already with free games then you will probably get a huge profits. Then just withdraw your money. Withdrawing may prevent addictions.