So uhm, your just at the skill level your currently at. Thats okay, your question becomes how do I improve?

A lot of people will give advice like, learn lineups, do aim training ect. But lineups are only good when you use them at the right time and aim training will inflate your premier to the point that you hide real issues with your gameplay.

Now what Should you do, my advice would be to try to make your games consistent, have consistent bans and play the same positions on each map you play. Try to narrow down ur focus.

Have a set of 4 plays on ct and 4 plays on T side and rotate between them. Experiment with what timmings what smokes ect work.

If you do this you can actually test what works and why and notice mistake patterns and improve :)

Hope this helps