My upload speed is .15 mbps!!! Help!?

Yes it is .15mbps, is this bad? I'm pretty sure it is because when I try to upload anything (videos, pictures, status) its pretty slow (435 minutes to upload a 26 minute youtube video). How can i fix this problem? I'm using Comcast Cable internet, it is my own. I'm not connected by wire but by external wireless USB. I already know that's bad but in the begging like say a year ago, it was working fine and fast as ever, the download speed would be like 10 to 15 and the upload would be like 9. But now the download speed is at 8 to 9 and the upload is at .15 and lower. Am I infected with malware or is comcast just the worst company ever?