What is good to apply for cracked heels and calluses?

I really can't take care of my heels.

No matter how much I apply it, it remains dry and cracked

I think it gets worse as I get older, the peeling skin.

It feels rough even when wearing socks. I bought an oil that is supposed to be good for foot care, but

It feels even worse than Vaseline. For now, I'm applying it consistently, but how does everyone else get their heel calluses and cracks?

Do you manage it?