Advice for a slump

I recently climbed through Diamond 2 and ranked up to Diamond 3. I then got bodied by everyone in Diamond 3, demoted then climbed back. I tried to incorporate new tech into my gameplay to gain an edge over the new better players I was now playing against but I still got bodied and demoted. Now here's the thing, I continued to get bodied in Diamond 2. I've been on a massive losing streak and am almost going to be demoted again to Diamond 1. This has lasted several days. Has anyone been through something like this? How did you get through it? Any advice is welcome.