For me, winning isn't just about withdrawing your money from an online casino it's also about having control over the money you use for gambling and over yourself. Sometimes, you might be able to withdraw your winnings, but if you end up depositing it back into another online casino because you lack control, you're not truly winning (Based on my own experience). That's why I believe you're real winner when you can control your gambling habits.
Always keep yourself under control especially your emotions and greed while gambling. The next step is money management when you win something good from gambling it will attract you to gamble more and if you continue to gamble like that with the whole fund you will lose it all again at one point. For this reason the strategy I use is that I withdraw my winnings and gamble more later using my original gambling funds. Although I use gambling for fun, this means that management protects me from many losses