Sports betting vs Online casino

[CarolWilks 0]

I have been betting on sports for over 20 years, and I can say with certainty that I have been consistently making money from it for the last 5-7 years. I bet on soccer, analysing the teams' statistics beforehand and placing bets based on my knowledge and experience. I place 30-50 bets per week, depending on the season, and have a fairly good additional income for me, which averages about 30% per year.
As for playing at online casinos, I have also been playing for about 20 years, but in essence, I do not earn money on this, but rather spend money, although in 20 years I have gained experience and have the necessary knowledge.
So, my question is: is it worth spending time at a casino if your primary and priority goal is to make money?
I'm not looking for sky-high results, but even a 3-5% increase in my bankroll per month would be a great result for me. Is it realistic to achieve this, and are there any members of our community who have achieved such results? Please share your experience.