Unnerving thing about MM

I have a big problem which really started affecting my enjoyment of game. So, I've been playing for some 10 months and since the beginning I was getting better and better as I learned, which is to be expected. It was all well until, starting last week, and continuing, I am worse and worse, getting C and C-, Getting like 1/6/3 with Trist, Ashe, MF with whom I killed before... So, my question, is it really true that I am stuck in hell and matchmaker started putting me up against much stronger players because I passed treshold for the lowers one just a bit, or am I just having an incredible stroke of bad luck or is it possible I am really suddenly getting awful at this game although I play it regularly? I would be grateful for some insight into it, Toning
Report as:
Offensive Spam Harassment Incorrect Board