Yes you are right many gamblers use to gamble for fun and some use to play for making money according to me gambling is both enjoyment and earning so it depends how much we are in need. I use gambling only in my free time so I invest a small amount of money. I never waste my whole income just on risky earning like gambling. I better keep both concerns enjoyment along with earning.
You are very good at controlling your finances so you don't run out of bets. Oh yeah, are you also targeting a number of wins every time you bet? Because if you just want to have fun I think you missed the opportunity to be able to increase your income. Usually people who can control not to become addicted to gambling will find it easier to win when they play