I once met a Japanese man on a bus in America. This was before I came to Japan. My sister previously had lived in Japan and she spoke Japanese. So I tried to start a conversation with him. I told him my sister had taught me that hello was "Ohiyo." He replied that I pronounced it wrong. So I didn't say anything more to him.
Now that I am in Japan, I am trying to learn Japanese. I am not young and I find it very difficult. Before I was trying to speak. But one of the Japanese teachers where I work stated that I speak Japanese like a little child. So for now I have stopped speaking.