Can you work on tweaking the pitches you throw well to add variety to the pitch?
If your slider is reliable for you, use it as a base to tweak. Change arm angle slightly for different tilt arm higher more break down, lower more across, put it further back in hand to slow it down, change grip slightly...
Cory Klubler won't even call his Curve a curve just a breaking pitch because the variety of it can look like slider, 12-6, slurve or anything between.
Don't get locked into what you call it or what a you tube video says it's supposed to do.