Thinking about my research, I am so depressed now. My boss and I sent a paper to a journal last year, and it was rejected. This term, I finished a term paper, and the variable I am interested in is not statistically significant. My friend who is in the same program got a paper accepted in a conference with her adviser. She told me that she didn't do much but the professor is just so nice to add her as a second author. This semester, she had hard time finding a topic and I shared some of my thoughts with her. It turned out that she is also getting nice result.

Why don't I get any luck or did I miss sth? I lose confidence doing research.

isn't it normal to have a paper rejected several times?

it's not a reflection on you or your ability. my second paper just got rejected, these things happen.
hang in there..as long as you try your best, that's all we can do.

I think it is normally. Now I have two papers, which were rejected. I correct them and will send again soon.

i got one paper accepted a while ago and since then my second paper has been rejected. you can do it. just do the corrections and don't give up.