Technology is really important, but relation is more important. I'm feeling though quite late now.
I was saved several times by the people who are living SF since I came here. And I felt there were big walls that is really difficult to join. Because I don't have any professional skills. Marketing skill is also one of skills, but it need English to explain. So I shifted my mind. I have to master English to enter the community. But only one year is really short, not enough. So I'm planning how I can extend my stay... I think it need more 2 years. So I'm try to find my job in English world, not only the USA. America is really difficult to get the VISA. I hadn't known it before I came here because I didn't any research about VISA. And I had never thought to want to get my job in USA before I came here.
So now, my mind is totally changing. I have 4 months more. I had better really seriously to be happy next 3 years!
First priority is to improve my English, second one is to think about next job that is needed to use English and marketing, and third one is to make a lot of friends! That's all!