Ideally betting like a pro requires a lifestyle change and when you take up gambling as a lifestyle you will experience significant financial changes.
What aspect of financial challenges are you expecting? Is it negative or positive growth because there is no guarantee with being a professional gambler. No doubt that you would also be making some profit but he will also be losing big because he will have to stake higher. I believe maybe streamers can have probably a steady outcome either they are in collaboration with the casino but to be a independent professional gambler doesn't have a guarantee of financial break through.
Gambling is an uncertain win-lose betting field.There is no guarantee that anyone will win a single bet. So it doesn't cross my mind whether this non-guaranteed gambling should ever be preferred as a major source of income. If there was a possibility of monthly or weekly profit from gambling then it could only be taken up as a profession or a job. But there is no guarantee that you can win from this gambler's bet every day. If you win one bet there is a chance of losing the next so this uncertain income should never be taken as a part time or full time job.
Of course, what you are saying is a true fact about the concept of gambling, where there are only two answers at the end of the session, namely winning and losing and the other thing is that there is absolutely no guarantee for anyone to be able to get a win especially consistently, so with that then we can conclude that gambling is really not recommended to be used as a place to find the main income, it is too absurd and if anyone opposes statements like this then maybe I say they are nothing more than fools whose brains and minds are not healthy.
What is meant by the main income is where someone must always produce because to cover the needs of his life or even his family, simply put is if there is a need then there must always be money, while on the other hand there is absolutely no guarantee for you to be able to get consistent results every day, not only that because I make sure instead of getting money but what happens is that you lose a lot of money.