Good story to share OP, I did suffered a lot in Gambling too, and I am still finding a way to quit...
Think for your family, your parents, your loved ones, your wife or kids < this always do when I lost, but won't be happened when you are gambling especially when you are winning....

you just have to limit yourself to do less and less gambling each day until you quit it for good. it means making smaller bets and having less amount of bankroll to work with then reducing the time you spend on gambling each day. if you quit suddenly you will come back again.
Actually your way is not right, to quit gambling, you cannot do this, once human deposit and loses money, he will have the mentality to deposit more and think of recovering his losses, at this point of time, he already don't want to win profit anymore. He just want to recover his losses,
But at this point of time, he start to lose more and more, the more he deposit, the more he lose.
To quit gambling for good is don't deposit even $1 at all, just play with free faucet if the player wants and find something else to do other than gambling. Maybe meet up your friends for dinner or movies or playing PC games is another good way.
yes, your friends can also help you to quit in gambling, but it is also depend if your friend is not addicted to it. And it is also depend on you, IF YOU REALLY WANT TO QUIT IN GAMBLING. BUT if your friends are one of the addicted person in gambling then your family will be very have a hard time to convince you to stop in gambling. Because once you are out of control I think it is much better to put you in the rehabilitation centre.