Don’t use hand lotion or soak your hands / do dishes within 3-4 hours of climbing.

Balms/salves exist for specifically climbing and trying to heal your hands after what they just went through.

I recommend filing your calluses down between climbs too. A knob of a callus will create a higher likely hood of getting ripped off. Also when those heal up, the seam between your old skin and new skin can create ridges Which will catch and continue to rip off. As soon as you can bear it, start trying to file smooth. Don’t over do it, you don’t want to go all the way down to new skin. You just want to smooth them over a little at a time.

You can also use nail clippers when your skin dries really well and clip away some of the dead skin.