It's not necessary to be in a level where we need the word "professionalism", because if we just gamble for fun, there should be no problem with us since we can stop anytime we want and if we lose we would not lose more than what we can afford to lose.
Professionalism are only those who are serious in gambling, and to those who believe they will succeed in gambling.
That's right, it shouldn't be a problem because our initial intention was just to have fun, not to be professional. This word is synonymous with playing a pro in every gambling, so I don't think I can achieve it but can only build my own plan.
But with points number 5 and 6 I agree.
Never depend on youtube reviews or see other streamers.
This is indeed not to be pursued if you lose then it is a risk, but if you are chasing victory again it will be an even bigger risk.