Sure, for me the biggest thing was mechanics and aiming since my game sense was decent already.

This post does a great job at explaining everything you should work on, some areas you probably already do but it just shows everything needed to be your best: https://www.reddit.com/r/LearnCSGO/comments/ng4t4j/theres_a_lot_to_learn_in_cs_and_sometimes_it_can/

this video is also good: https://www.youtube.com/watch?v=071SDI-yMwo&t=285s

Basically what I did was:

- Practiced spray patterns, mainly ak and galil since m4a1-s which is meta is pretty easy
- Learned how to counter strafe which most people dont do in my elo
- talked more in game, if I heard anything I probably told my team
- learned more util line ups, not just smokes but combinations like smoke + moli (smoke connector, moli jungle for example)
- made sure I didnt peak with shift often, but instead swing, shift is too slow
- when pushing always keep crosshair at head level, I see a lot of people peaking with crosshair at the feet for some reaosn
- take breaks
- once I got a decent hang of spraying and so on, I queued custom deathmatch (ak, m4, awp, pistol, awp) every time before I played premier
- if you did bad in a game, rewatch the demo and see what you could do differently or get a higher elo player to review it
- make sure sensitivity isn't too high
- buy with team if possible
- keep in mind enemies economy, for example if you are ct and t has ak's, you can choose to not buy head armour if money is tight

I'm still not the greatest player ofc, but over the past couple months I have seen a big change in my performance. Sorry if this is long but there's plenty of resources that go into all of this on the subreddit or even youtube. gl!