I suppose that even if a person does not gamble for a month and then resumes gambling, they can also be called a gambler. This is possible, for example, during the off-season of some sports championships, when teams go on vacation and gamblers go on vacation in anticipation of the new season and new bets. To be called a gambler, you don't have to play slots every day and bet on any championships, any sports, or any athletes. This is no longer an indicator of a person's gambling addiction, but rather an indicator of their absolute carelessness or short-sightedness. At the same time, people often show carelessness in gambling, but it's also like financial literacy: if no one has taught you about it, then you don't really know much about it. The same applies here: if you don't know what principles to follow when gambling, you can end up in big trouble. Sometimes it's the fault of gambling, sometimes it's just plain ignorance.
That's roughly how I play, because I can take a few weeks off from playing and then place a lot of bets during a championship. But I still limit myself because I understand I need to do so to avoid falling into a downward spiral every time I lose. I'm also a gambler, though I do interrupt my excitement against my will to avoid finding myself in a difficult situation and not knowing what to do. Although I wouldn't call myself a smart gambler because I haven't yet developed a winning strategy. Generally speaking, I'd say a gambler is someone who craves to play and feels the thrill.
In general, I have a similar understanding of gamblers, because excitement is a driving force that excites the player's consciousness, makes their heart beat faster, their pupils dilate, and so on. Players simply begin to frequently imagine, while playing, that they, and that today, will be the winner and finally become rich. Furthermore, I think players have a constant need to play, but I'm not even saying it's every day. It can even be dormant and resurface after a month, but it's like an explosion, a strong desire to play. I think the word "gambler" refers to this type of person.