What do you mean no more than 10% in one position? 10% doesn't mean anything if it is not related to your stop loss. How much of your account is at risk if your stop loss order is hit?

Also I don't agree that paper trading doesn't work. It gives a trader practice using a new system. Yes the emotions are different between paper and real money... but someone who has practiced a system will have an idea of when that system works best. Going straight in with real money without practice will lead a trader to either: abandon the system if it doesn't make money right away, over trade, stop using proper risk management.

Plus intuition is one of the most dangerous ways a trader can trade. There is no repeat-ability and you are super susceptible to emotional trading. I'm all for doing an intuition trade here and there with a small amount of money as it keeps things interesting, but doing things exclusively on intuition will most likely yield underperformance and will guarantee a blown account by a newbie.

I've done a lot of statistical research on trading. You can become very good and very profitable if you can control your money management and emotions. You can even be a shitty timer and still make a lot of money. The key is discipline.