Unlikely, gambling might be profitable in a session or two but over the long term gambling is a negative sum game, the house edge is always against the player and hence on long term, majority of the player's money profit is in negative if you calculate for a year or more.
yes that is right , and it is like a mission impossible to manage your bankroll to make it always profitable now or then . i believe too if you do a calculation or create a book where you lost or get profit written there , the result mostly just negative as you said.
gambling can be profitable in the long run but i can say it has 1% chance for anybody to successfully make it happen.