dAMNIT!!!!

Shit man!!!...my pc got infected by virus again....i cant believe it...what shlould i do now....but this time even worse...its not a norm virus...but its a worm...o...god...im just afraid that it will bredding in my PC....come on...hw could this be...again..as we all know.....the solution is by formatting your computer....but the thing is...all the files in your computer will disapear....is there any better way to get out of this situation?? do you have any???
come on share wit me guys...i just cant afford to lose all my data...especially all the assignments...erm...by the way...i wish it will recover soon...i got it from computer lab...so now...the only lesson that i have learnt...never ever plug your stick on lab computer....or u ll be just like me...thank god...i managed to back up some of the files...not bad...but it remais unsave....the antivirus program...up to now...failed to remove that silly worm...its still stuck in my computer...whether u like it or not...u got to format ur PC....oo...argh....wht more can i do...that is the last resort that i can think of rite now....oo....argh...exhausted....