feeling hopeless of my profeeson?future？or life？

to be honest ,I always make bad remarks about myself,especially in regard to the performance of my profession.i feel I have lost confidence in the postgraduate life.the other people complish (you could say here publish, write or complete, but not complish) some excellent papers so excellent, but for me, the paper ("writing papers would be a life-killer") means life-killer.  Creating just one novice (or similar adjective) paper is so difficult to me now , let alone an highly quality one.  Based on this situation (or based on these circumstances), is it absolutely impossible to (I'm not 100% sure what you mean here.  I assume you mean graduate with a PH.D from) applicate an PH.D of my favorite university?! (you need a verb here... you could say, Will my endeavors mean success?)  Endeavor means success? I have doubted (I am doubtful)⋯⋯and the most dreadful thing is that I have suspected my own intelligence holded by General people (I'm sorry, but I do not understand your meaning with this prase at all.  I can't even give a suggestion because I do not know what you mean.).  I fail in paper-writing.what can I do now? A little disappointed on myself. 

Practice makes perfect!  I do not enjoy paper-writing, either, but I have gotten pretty good at it in English, anyway!  Most of what you said above is understandable.  Mostly, I am giving you feedback to make it read more smoothly.  Some were minor grammatical errors or spelling errors.  You might just try to be a little more clear in your expression to make it read more smoothly.  Keep trying!  You will eventually be able to write well in English!  I'm sure you are very intelligent.  Maybe you can have an editor help you with your PH.D papers?  It would still be your work and your words, just enhanced by someone who helps you look good....  :)