You tube uploading

I need your help!When I try to upload a video from my go-pro it takes...a long time then an error message appears.Even for a 5 mn video it doesn't work.
Any advice?I'd like so much to show you the kind of roads we ride here,lol.

How large is the file? What is your connection speed?

You may need to damp down the resolution.

What's the error message content?

I have to tether my computer to my phone to get a connection fast enough to up load videos.

Without an error message, I would guess it's due to a crappy internet connection. When you start uploading, ping youtube.com at the same time. If the upload fails, check the ping stats to see what kind of loss/latency you are experiencing. While latency shouldn't be an issue, there is a point where BLP (bandwidth latency product) is so bad that just about any server would give you the boot (hackers can do nefarious things leaving connections open, i.e. slowlaris)

Thank you eveyone for answering.My internet connection works fine,we have tv with it.
I 'll try to "reduce"my files.If I can remember well the error message said "an error has occured please try later"or something like that.I never had this kind of problem before.