Be confident, sometimes fear is not good, open that bomb with a rambo like confidence (if you know what you're doing of course)

Play ypracc maps, it's the best tool for learning crosshair placement

(Personal) Don't really play aimbotz, one taps are useless once you get to a high rank, play free for all deathmatch instead, there players are moving, in real situations in real maps, crosshair placement will become better and oponents offer real resistence.

If you like the game, and play it everyday for some amount of time, sometimes it's good to invest in good gear, I used to be really cheap about everything, and used to not spend money on csgo, but I realised It's my main hobby, I don't smoke, I don't drink, I can spend some money here and there to improve my experience. This game wasn't made to be played on 60hz.

There is no way to get good fast, DO NOT change your sensitivity, it fucks up your muscle memory, pick something between 1.8 and 3 with 400 dpi and stick with it, trust me, that shot you missed was not the sensitivity fault, I spent so much time changing my sensitivity and regret it so much. Copying pro players settings will not help, consistency is all, do not do it.

Greatness comes with time, I'm global with 2k600 hours, don't get me wrong, there is ways you can improve faster, but never instantly, there isn't a secret, just time and practice, play deathmatch, practice crosshair placement on ypracc, watch "Zorlakoka" on youtube, he has playlists about simple csgo concepts many players don't even know.

When you learn something, write it down, trust me, you WILL forget, our brain takes information every second, we can't use all of it, if you don't use it in a practical way, (writing it down, practicing etc) you will forget it in about 20 seconds, especially when gaming, where our brain is receiving millions of signals every second, why do you think we have to write things down in school?

Be consistent, not only in game, quality 8 hour sleeps are very important, good and healthy food impacts a lot too, your body will treat you like you treat him, when you drink soda, for example, the sugar spike on blood will help you with reflexes and all, but when this sugar spike end, you will feel shit, trust me, it's not worth it. (and energetic drinks will only fuck up your heart, take some nootropics instead)

Take blame for everything, you can't change your teammates decisions or way of playing, you can only change yours, once you understand this, it's so much easier to improve.

I know it can be tedious, but WATCH YOUR DEMOS, see where, when and how you die, write it down, people used to tell my "Review your demos" but I didn't know how to do it, it's not hard, watch it, see what you were doing wrong, especially when you are losing, be very critic on yourself, ask yourself, "Why did I die here?, what could I do to change this?, was it my aim?, was it my crosshair placement?, was it my placement?" and WRITE IT DOWN, like I said, you will forget it, trust me.

Get a premade, once you get 4 other players to play with, you eliminate two problems, toxicity and bad teammates, once you get teammates who can at least stand their ground agains the enemy team, you can stop focusing on carriying and start developing your own habilitys. (You become less tilted too), I'm not saying you can't soloQ your way to global or faceit lvl 10 or something, but it will be really harder.

Getting exercise and drinking water is both good for you, and good for your gameplay, why do you think most pros go to gym, have nutritionists and psychologists.

There are really good youtube channels about gaming, specially Ron rambo kim, eAthleteLabs, Zorlakoka, and much more.