So In conclusion, I respectfully ask "what is your Effective Expert Advise for a Person (me) that has enough Salary but still want more Financial Stability using cryptocurrency".
I am not an expert on this but if I may say so, when you believe that Crypto can make you financially better then learn first.
It is important as you said in the last quote that bees do not need to waste time explaining to flies that bees are better than dirt so indeed in this case I also will not comment much because you have to learn more about what you want to do.
Investing in bitcoin will always be the best advice, it's just that when working on it you have to go through the way you learn yourself because after all, when you only listen to the words of others then it is the same as you making your last quote as your own representative form.