Playing winning poker - is there such a thing?

Now most pros will tell you that there is, but I'm not so sure I believe them. I wouldn't classify it as 'playing winning poker' but 'playing successful poker'. You can play rounds and rounds, hand after hand of poker and at some point win some money, but if you win $50 after putting $150 into a game, is that winning? I mean, you did win money but you also lost twice what you won.

Well, anyway, since that problaby sounded like the non-sensical babblings of an idiot, I'll stop there and from now on I'll be playing 'successful' poker.