Fix It RIOT

Alright so about awhile ago I entered into Gold V rank, then about a week after that I started losing a bunch of games. As you can guess I got demoted back down to Silver I. It didn't stop there either. I continued to follow this trend and eventually got put into Silver II. Along with this, the lp that I would receive from games that I did win dropped as well. I don't understand how they can expect me to get back up to my previous rank when I'm only earning 13 lp per win, but as soon as I lose, I lose 22 lp. That isn't right. Most of my games I maintain an A even S rating, win or lose, yet I'm still losing so much lp. Nothing I can do when a player afk's and loses the game for us, nothing I can do when other players are disconnection during battles or throwing games on purpose because their upset. No, that's out of my hands. So anyways it's got to the point where I have to win twice as many games as I used to, even though I continue to get decent grade's after the game. How to resolve this? Maybe judge the amount of lp gained or lost by the grade you obtain. Someone who receives an S grade doesn't deserve to lose that much lp, and to be honest I don't think they deserve to lose any lp, instead they should gain some. I don't know, that's about it. Almost feel like I have to make a new account for ranked because the one I'm on right now is as useful as Grave's cigar. Get back to me RIOT pronto.