Filmed a video, but not sure about uploading it. HELP!

I filmed a video today, but its such a long video, like 15 minutes. I dont think anyone will want to watch a 15 minute video, and I can't make it any shorter. I've already had to do the video over 5 times. It's not a tutorial but it is an update/review/shoutout video. I just want to know, do you guys want me to upload it? Is it some thing you guys would watch? Also, for my next tutorial, should I do something with Crackle or my Konad Stamping Kit? I need help, lol.