If you really want to improve you need to invest time and do your daily aim training. 2-3 times a day 15-30 minutes are enough to keep your muscle memory fresh.
- AimBotz (Start slow, different tasks, clean kills, spray transfers etc.)
- Yprac Aim Trainer
- FFA Deathmatch
- FFA HS-only Deathmatch
- Variety / different task with focus on aim, f.e. Fast Reflex Map
- Playing on a retake server