You don't have to feel bad if your friend never tells you anything because that might be his secret. You just have to try to trade by learning from other sources that can give you lessons on good trading. It's just a matter of time for you to get your own success story and not depend on anyone but yourself. You still have plenty of time to learn about trading and profit from trading and trust that your time will come very soon.
It's both good and bad at the same time. I mean if there is a person who made a ton of money doing something and he tells you to do the same, that method may have worked for him at that time, but it could be a bad method for today, markets change all the time, if he doesn't tell you then you will never know if it would be good or not.
So, you are sitting there with a potential of either end up with profit/loss if you try, or just wonder what would happen if you can't try. I do not know which one is better, sometimes it should be left to people and you just need to warn them and tell them your method and then you would end up with making a bit of a profit, or a loss and they will learn themselves.