Failing to upload to Youtube...

I have a video I did last night but when i try and upload it, it won't upload. Strange thing is, it will do the thing it usually does when it uploads something, you know tells you how long until its done uploading, but you know when right after its done a thing will pop up and say things like "Veiw online" or "Tell a Friend" that doesn't pop up, when the time thing is done nothing else happens. Ive tried uploading it 5 times and it still won't work. I even went to my youtube page and went under "Video Management" and its not there and I've done it 5 times, the video I'm trying to upload is a Music Video. I tryed exporting it with "Quick Time" but it comes up with really bad quality. I went though step by step tutorials on how to export in HD quality but still comes up really crap quality ;c

Can someone help me please!!

Thanks, Sarah.