as black, i really like my repertoire and i have a lot of success. I know some theory and like the positions but i want to become even more good. What would u do to know even more about an opening you know pretty much about?
Have you looked into adding sidelines and transpositions?
The club I use to play at had a group of anti-Sicilian and anti-Catalan players so I would rotate between a few sidelines to keep the positions uncomfortable for them but playable for myself.