I guess I am the happy few among gamblers as I actually have made a nice profit (a couple of BTC) up until now.

Haha. Congrats then.. But actually, you can't really tell to yourself you already are gambling if you aren't getting more hooked with it. The winning circumstances you've had before will get eaten up by the losses, just as any other gambling story there is.
Thanks bro, and don't worry about that. I have pretty good self-control on how much I can spend on gambling each week (only a tiny fraction of my bankroll). In worst case scenario, I would lose that and would stop gambling for the week, instead of chasing the losses.