Been Learning on my ZSA Moonlander, but I'm Stuck at 60WPM

I recently got a ZSA Moonlander and started learning colemak dh. It's been a really fun journey so far and I'm now able to type consistently at 60 WPM. However, as you can see from the chart I've sort of hit a plateau at 60 and I'm having trouble breaking it.

I think it's time to switch up my training strategy. So far, I've been using keybr.io and typelit which have both been great. Are there any other tools folks have used during this not-quite-beginner but not-yet-fast stage?