No, I'm not a gambler. Except, as I say, in the airy fairy everyone-who-takes-any-kind-of-risk-ever is a gambler sense.
I guess if you like labels and you want to label yourself something for everything you do in your life no matter how insignificant, then you could label me: gambler, cook, writer, baseball thrower, unemployed warehouseman/accountant/buyer/CS rep, housemaid, pool player, cyclist, recording artist, philosopher, chauffeur, television/movie critic, walker, addictions counsellor, singer, random thinker, banjoist, cat babysitter, Jeopardy tryer-for, bowler, computer gamer . . .
I personally don't label myself all those things. For me, to start attaching labels, a thing would have to surpass a certain level of significance to my existence and identity.
In my life, gambling is an afterthought. Sometimes I have a passing thought that I should gamble more - and there is sense to that - because I do make money at it - but it won't happen for the simple reason that: I just forget about it. Doesn't cross my mind.
So no - not a gambler. Seriously, I would tell you if I was.