Your Destiny in Your Hands. Really?

How many of us have seen people wearing rings with stones of green, blue, magenta, etc? Or know family people fasting on Tuesday, Thursday or any of the other five days? I bet a lot will have positive replies to this. I find myself often asking one question. Is this hypocrisy?
A lot of people wear it to avoid having a bad spell on their life or to have a reduced effect of a bad spell. Some wear it to improve their current life. Some have a reason that because they did all these things, things are not as bad as they could have been. Others will do it to have a better health, to help the couple procreate; succeed in their academics, etc. The list can go on and on. Maybe you can add on some as well. I am not being sarcastic here. And it is not like life’s always been rosy and smooth for me. In fact, it has been after going through those potholes (some really huge ones) that I think on these lines.
Now the thought of why I consider this hypocrisy. The Holy book of Hindus is called Geeta. One of the biggest and better known preaching of the Geeta is that ‘Do your own duty. And in return, do not think of the fruit (outcome).’ I believe that this contradicts with the wearing of rings, some necklaces, fasting, etc. In this case, you are fasting, wearing some stones, etc, to get a desired outcome. Does this not mean you are not doing what the Geeta teaches you? One is performing an action or duty (fasting, wearing stones, in this case), precisely to get a particular outcome (something that you really want).
This not only makes me think that the two thoughts have different approaches, but also tells me about faith. Those who believe in the Higher power will have faith in His decisions. And not try to manipulate that. Whenever things don’t go too well, we are told, “Don’t worry, everything happens for a reason.” This once again contradicts what one says, and what one does. We are told to “Have faith in your own self”. If we do, then why let a stone or a particular day influence that? I agree that particular days are meant for specific deities and stones for some other purpose, but what religious book tells you to do these things? And how will doing so change the course of your life?
If one is doing it for their own satisfaction, that’s fine. But then few will admit to that. This may seem like a strong article, but this was something I’ve been thinking for sometime now, and am now putting it across. I hope not to offend anyone’s feelings with this.