That's like saying "I know that most aspiring forex traders never achieve steady profitability, so I think it's better not to try".
In my opinion, what matters is to have some kind of "journal" (whether it's a "blog", per se, or not) so that you can analyse what you did wrong, learn from it, keep good written records, and invite suggestions/observations from more experienced traders if you wish to.
No criticism intended or implied, but to avoid doing something at all just because many other people don't continue it indefinitely isn't appealing logic, to me.
