MMR adjustment suggestion

It should be based more off of individual performance, kda, or average based on your team-mates over win or loss,. Win or loss is simply FAR too black or white, especially when a single player can lose the game for the team. I've been playing league for about two, maybe three months now, and I can't help but feel like win/loss on matches is far, far too black and white for individual skill level.

I also feel like even with a loss, if you almost carried a game you should get a slight boost in LP over a loss always losing LP, even if you're the only person who got a few kills or actually played correctly, yadda yadda yadda, win conditions for the champion, you get the idea I'm sure. (perhaps a 'stalemate' of sorts if you're in a promo match) would be far better than what's going on currently. I'll settle for a 5-10 minute matchmake if I'm not wasting THIRTY MINUTES. Or even twenty! Because i've got a troll, an idiot, or more. I recently made a smurf account, and oh. My. God. It's even worse there and it's only 2-3 days old!

Edit: As a sidenote, in every blind game i've played so far, eit seems like EVERYONE is a smurf, be it troll or someone trying to avoid the BS mmr they've gained on their main at this point because of playing with A)crap friends, or, B) CRAP MATCHMAKING