Unfortunately I know that feel too well. https://media.giphy.com/media/EUD3LkdsB5G5W/giphy.gif
But then you realize you've been losing because of this one friend that you simply can't win with. http://img.pandawhale.com/post-36878-will-you-help-me-hide-a-body-g-gwcL.gif
I have a several friends in gold/plat, and thus am often several ranks below my allies/enemies. On the plus side, that normally means my allies can get fed as they are well above the enemies rank.... http://risovach.ru/upload/2014/06/generator/ycua_52917559_orig_.jpeg
Then your friend skypes you and wants to play normals http://1.media.collegehumor.cvcdn.com/41/32/52d350b6579b185b7348fcf3fef37182.gif #INSTANTREGRET
I played with some higher elo friends a few weeks back. Huge losing streak.
Haven't picked the game up since, although there's an entirely different reason for that.
What's your reason then :)
Technical difficulties
I've never lost 10 in a row, I wouldn't know, your flow. Y'know?