i m silent when i m stressed

i would like say that i m really stressed up this morning-afternoon. i saw my frens, i feel stressed when i thought abt the assignments which i started to do since last night. know nothing abt calculus so i juz depend, know little abt asm assignment, coz hang by the question when is abt multiple regression plotting. know 0 abt the softwares of r.2.8.1 and matlab. shit programming, coding or watever abt computer,i m juz suck at it. well not only dat but is all. i tense, i stress not bcoz i worry abt whether can i pass it up (coz i know finally there will something to submit) but more to i cant sponsor effort to the group assignments and end up need ppl help me, i feel i so weak and terrible, and i m scare ppl will hate me coz i dunno how to do. and nex time they dun wan group w me, plz dun, i scare alone although most of the time i am working independently. juz walk out from dk, on the way to get my car to hav lunch with others, i walk a bit front, coz i feel like i m cryin, luckily, it is juz swirling in my eyes and no one comes to me, if not, dere will be a raining day for me in a sunny day. i am silent when i m stressed. i talk little when i m tense. i dun like to smile when i m exhausted. and finally, all the tests and assignments hav done.

here, i would like to use this opportunity firstly to ding and karen for being so much for me in my assignments coz i m juz useless. ding and karen help me so so much which u never expect how kind are they. they are juz my lovely, importantly friends. indeed and in need. and also would like to thanks all the ppl who are "teaching" us with examples. they are juz so useful, feel so paiseh, to only find them when i need them. sorry, i will do and pay watever u want as long as u ask coz u all are really important.
ppls i want to credit and of course ur great help in my assigns: ding, karen, vt, zw, wc, my, sy, j, and unknown senior

因为你们的慷慨解烦 才显得我自己渺小和需要 即使是微不足道的鼓励 已经是我最大的支持