I've Never Before Suffered Such a Massive Losing Streak!

I have gone as high as S3 this season, which is not an amazing accomplishment, but it was a stepping stone toward gold. But I am on the verge of diving back down into bronze because of the number of losses I have suffered as of late. I am up against a wall here and it is driving me mad.

I have absolutely no idea what to do to turn things around. One more defeat as I am writing this and I will be demoted into bronze. A place from which I clawed my way out tooth and nail. I thought that after being placed in a number of teams so unbelievably toxic, flaming, and downright troll that I'd have a number of decent teams coming my way so that my wins to losses ration would even back out again, but this has yet to happen.

I feel like I am already back in bronze and am facing off against Gold+ teams. It just feels wholly unfair at this point that I cannot escape from this horrible nightmare. I'm sinking fast and there's just no lifeline in sight for me. I am at an utter loss as to what I can do to make a positive change.