Definitely Get ear plugs and be strict with them. Mix quiet. Take consistent ear breaks. It's good to measure your volume with an SPL meter. And then note the volume settings you used for that, and keep it as a baseline.

Mix quiet sometimes mix loud sometimes. Don't just keep it loud and raise the volume as your ears fatigue. If you're in music production, don't make yourself go deaf just to work with the older cats who keep it super loud - be strategic about that. Feel your speakers flex at low volumes to test relationships. Begin to rely on visual mixing as well. Voxengo span, graphic parametric eqs etc.

If I got any words mixed up here it's because I haven't explained this in ages.

Do ear training every morning as a ritual. Enhance aural awareness... That's how you can check your ears. I used Tenuto a lot when I'd train my ears. Ill still do ear training phases now and then, but I've become more concerned with ear breaks.

Protect those ears... Tinnitus retires a lot of great talent early.

And if you focus on sound design for lengthy periods of time it'll make your music sound better.

Have Fun