choice

I am a teacher in a senior middle school in north China.After graduating from college, I have been working in this school.However, I think this school isn't suitble for me.I cannot make my dream come true here .The wages here aren't very good.Therefore, I want to go to a bigger city, such as Beijing, tianjin,dalian,etc.But I am afraid that I won't  suceed if I go.I don't know how I should do.Please help me!