Any kind of tips to break out of "Killer Anxiety"?

See I've just not been playing my best this past week. Sure I've had some good games but I feel like I've just been choking and fumbling left and right and it's kind of making it hard to enjoy playing killer. I WANT to be playing this game but I've just been having this dread knowing Im going to make myself look like a clown for some TTV who's clip farming, or Tunnel Vision-ing when I know that's not a good idea and i could be doing literally anything else.

I cant even play my main because I know I'll just end up making myself look like an idiot.

So any kind of advice to get past this would be greatly appreciated.