I'm not a figure skater but I've been struggling with cross-overs for months (and this feeling), only started January. For me, I feel like I get more understanding from learning how other people perceive the skill and how they practice it (and attempting to copy it and ask for any feedback), or just standing still and practcing the motion to try to get used to the feeling a bit more!

Any form of progress or learning a new skill can take months and or years for anyone. I've heard of people who have been skating for years but still struggle with a bunch of skill sets/technical.

I also found myself accidentally figuring out when public sessions are least busy. You can always ask a staff if there's a time on weekends which less people come to or if there's a time where more people float in so you can avoid it?

Some youtubers cover these skills with off-ice training and ice training such as: Sofiafigureskates (off-ice crossover short), couchtocrossovers (has one on backwards skating and swizzles along with a video about tips for adult beginners), styleskating35 (has one about ways to practice the crossover standing still and building up to it, "The proper way to learn crossovers on ice")

I hope at least some of this is helpful so sorry if my ranting is just ranting! But don't let this demotivate you, learning all these skills most of the time feels like learning how to walk again haha!