~snip
I like the topic title. Indeed, investing doesn't give any guarantees and this is not the road to wealth, but without investing, in principle, it is impossible to increase your wealth (of course, this is only one of the options for becoming rich).
You have listed 6 points that you consider important, but missed the most important point - this is 7.
ACT. Without it, everything else is empty sound. Do you want your investment career to be successful? Then start taking action. It is at this point that so many turn off their path and they never achieve the desired results.
That's right, we need the ACT because like what you said that all of it will be worthless unless we do the Act. These where the man seperates to the boys, they are afraid to push it because of the uncertainty ahead. They have a bad feeling for uncertainty and they see it as bad but for the minority of the people, they see it as an adventure and they having fun on it. Don't follow the wrong crowd or the majority of the people because they are the ones who will not make it to the top. Follow the minority or the crowd who did what the majority people says impossible, they achieved their goals with ease and with fun because they ACT.
All of the steps that I mentioned in the OP is really good and we should follow it but in order to to imlement it then we should ACT. Do you want to be rich? Do you want to have a better lives? Do you want to provide good life to your family? All you need to do is to ACT. There are no other people who can do it for you. It's only you so what are you waiting for? Will you follow the wrong crowd who are afrai to ACT and take the risks? Or will you follow the minority who act and keep taking risks. The answer is within you. You are the only one who can figure it out.