First, you must be mercilessly ridiculed. This is important to build mental fortitude.
I will now proceed to do so.
Mg1
MG1 in 2000 hours LUL
DMG
Highest rank ever LUL
Now that we are done with that, I'm watching the match vs GEs and here are some criticisms in chronological order:
Your FPS is very low. This is the #1 thing you should fix. Lower settings and resolution till you can get 200+
Stop spamming with Glock at long range, calm your tita
If you're spamming at closer range, pull down slightly
Above 2 also apply for Tec-9, you blow your load all on some guy 80 metres away in one wild spam. Just call down.
Your crosshair placement and pre-aim is absolutely AIDS, this is just something that you need to practice by playing maps more (even by yourself) and 1v1ing more, because that helps a lot with preaiming angles and being spatially aware.
Your movement is bad too, again shows bad spatial awareness. Play death match a bit, move around maps sideways and backwards a bit.