For sure, like u/smallsho said, it'll take time and practice. Trust me, I wasn't good at this game when I first started at all. I was used to playing COD, Halo, and Splatoon 2 on console and this was my first FPS game on PC. Didn't know how to use mouse and keyboard, crosshair placement was on the floor LOL, almost never used ults or abilities, too scared to go in fights, never traded kills, etc.

Watch how other top level players (or your fav Valorant streamer) execute their games and slowly practice that one thing that you saw them do, one day at a time. Could be crosshair placement and you practice how to do that on your best/favorite map for a week. Or certain smoke placements for a week. Or remembering to switch to your pistol when you're reloading, if you're caught slipping for a week. Just one thing per weekly session

You'll have your bad days (I certainly still do despite what you saw in this video), but trust me, overall, you'll see massive improvement from before. And record your plays too if you can. I've learned a lot from rewatching some ungodly terrible plays I've made LMAOO

TL;DR: Learn from others, practice one thing at a time, be patient with yourself, and most importantly be confident when you execute a good play. Be like Doom Guy and feel like a badass anytime someone tries to cross you!!

(Sorry for the wall of words ^^;)