This is a tricky question to answer - we see this again and again in business, in classrooms, in organ recitals, in families - everywhere where there are at least two people involved.
You thought you can change the world (your world) but the inertia was stronger - not too many people want to be changed, even less people want the change of you.
Your idea failed because a) it wasn't remarkable enough for the people to tell their friends about or b) they are not the right people for you.
Here's a more productive way to look at this:
Based on what you learned from your audience, you change something in your idea or the execution of the idea and do it again (if they are the right people for your idea). If not - you go find some other people who are more likely fit to what it is you have to offer them.
If you give up too soon, you will not be able to change the people you want to change. On the other hand, if you just obnoxiously pitch the same idea the same way repeatedly to the same people - they will flee from you like we run from selfish telemarketers.
But if your idea generously helps people achieve their dreams, you have a chance.
The first step is knowing what their dreams are. Usually it's not what they say they want - it's what their inner subconscious needs are.
[HT to Pieter]
Next: Two pieces for Thanksgiving
Part III: Allegro from the Trio Sonata No. 2 in C minor, BWV 526 by J.S. Bach
I Bind Unto Myself Today