Time to drop some gems. There hasn't been many mentions so Imma talk about the importance of your daily process and how your in real life consistency will more often-than-not translate into in-game consistency.
For example, if you're eating mad big macs and serious processed garbage idk how well you're expecting to play, but the reality is it won't be that great. Do you want your engine to run off that 87 octane bullshit or that 93+ supreme Nitro Gas? Lemme know if you guys wanna know how to improve your diet but it's really not that hard at all, people know not to eat crap but they still do.
One of the other most crucial things that affects my in game consistency is my sleep. Not always how much I'm getting, but the consistency of my sleep (same KO time, same wakeup time). Anything more than 8hrs of sleep and my brain does not work. This is more of you, you have to understand your body and what works for you and what doesn't.
Another huge tip, get some fucking exercise. I understand with the current world situation the lack of motivation and anxiety is real but this is where you have to find the power and do it for your own good. Get that blood pumping to your heart and brain and you will see a guaranteed increase in performance both mentally (decision making & mood) and physically (reaction time & DM). You have an increased amount of oxygen going into your brain, allowing you to focus for longer without anxiety.
Also guys please take care of your fucking joints, do not sacrifice your body to play esports LMFAO. I recommend stretching daily and taking glucosamine and omega-3s for joint health and anti-inflammation if you notice pain.
Learning how to meditate will also probably change your life as you can completely reset your mentality in just 10 minutes. As bear was saying if you can remove yourself from an in-game situation and look at everything from an analytical standpoint, it will be a lot better in the long run. This is especially for newer players who are easily affected emotionally and for those who succumb to mental pressure. It's hard for me to explain but while emotions are good because they help drive your ego to improve, they can sometimes get in the way and cause you to overthink a lot of shit. Sometimes you literally just gotta chill out, re-hydrate, maybe get up and walk around a bit. My team and I have been down 3-0 at halftime only for us all to re-center, re-focus and then reverse 5-0 teams in the 2nd half. Never bend, never fold.
All of these are strategies and life changes that I implemented to my own. They improved my mind and body for the better. You best believe it helps me stay on form not only individually but interpersonally too, as this is a team game and your interactions / comms with your teammates matter quite a lot.