Hey! I have some pieces of advice that might help you (besides practicing):
- Choose the best sensitivity for you. ( Not too high or too low )
- Try to have a good set up & wifi.
- Choose your best video settings.
- Choose the best FOV. ( Between normal & quake pro )
- Choose the best resource pack for you ( Either default or custom )
- Choose your best mods or vanilla if you like. ( A list of allowed mods here:
https://www.cubecraft.net/threads/allowed-mods-and-clients.228596/ )
- Watch 1.9 combat pro players youtube videos.
- If you don't like the normal crosshair, you can change it with a resource pack or custom crosshair mod.
- Always be relax & play in a good atmosphere.
- Sit properly and put your back straight.
- Try to make your playing style.
- Don't play on a map you don't like.
- Don't join a game you are sure that you will lose it & become upset.
- If you are playing with a laptop, I advise you to avoid playing with the trackpad. It will limit your skills.
Thank you for reading my comment!
I hope I helped you!