Actually we don't need to gamble but gambling use to attract us because no matte how risky it is we still to put bet because of the easy money thingy it offers for winning.
Then we should not think of the easy money, for newbie they might think the easy money thing is real but they will realize when they experience loses that gambling does not give us winning moment most of the time. Let's put in our mind that we need to gamble only to have fun, which means we have to set aside an amount that we have to spend and stop when we ran out of money, that's pretty simple, we will be happy if we stick to that.