There are so many disadvantages of being so addicted in gambling, one of which is forgetting your priority, spending your time to your family and your friend, you won't be able to more productive things than losing money, to the point that even you already lose and don't have enough money to play, you will make ways, there are times that you will ask a request to your friend to give you money as debt. You should be the one who controls the gamble and don't let the gamble control you.
It depends on what type of games you're playing.
If you play poker or sport betting for example you'll not systematically lose money. If you have good skills for them, you can even win money.