i cannot upload to u tube..
I will post some useful links below on how to do these things so you can check against what you have done. Also some common issues and fixes.
Also please bear in mind that the upload is a 3 stage process, first you sign in, then video is made and finally your video is uploaded. If you press the X at any point this will cancel the upload. You will see a "Congratulations, your video has been uploaded" when it's uploaded. Only click the ticks, if you click a X it stops the process.
If you are still having problems after that it would be useful to know at which stage the process is failing? Are you getting as far as putting your YouTube/Facebook password in? Is it failing before that and at the same point each time? If that's the case which element is on screen at that point as it is likely that there is a problem with that element.