Ok, since I've been studying some psychology, and even some sports and exercise psychology, and like to read about these kind of things, I will summarize some general tips for getting great, but at any sport.
1. In practicing for getting better, you need to practice with awareness. That mean that you alter your training sessions, an try new things. You need to get a challenge sometimes, in order to progress.
2. Repeat, repeat, repeat. The ones that are great, are not great for nothing. They spend loads of time practicing.
3. Get feed-back from someone, if you are not sure of how you are doing you are not able to improve the things that are not working.
4. Focus on what you need help with. Most of us focuses on the things we are alredy good at, when we could get super by imrpving the stuff that aren't really working for us.
5. Beprepared to work really hard, mentally and physically. There is a reson for the limite amount of people excelling, and that is that it takes time.
Hope that helped you somewhat, even though it is general advice. Then as the previous girls pointed out, I don't know if your goal is to get excellent just for the sake of it, or if you want to win the world cup :) Since pole is more of an artform than sports for me, 'i think that maby one could focus on finding your own niche. Pole is relatively new, so I think that there is loads of room for finding new ways to express yourself :) Good luck!