This is the crux of so many spiritual lessons.
I did cold water shower. like Ice cold water. In winter. Its 2 degrees here. People told ice cold shower is amazing for beating cold and I
One shower, Just one shower was enough. It changed by relationship with cold. Now I am still feeling cold, but not suffering from it. It's a subtle change but profound one. Its a huge shift. Now I m washing my hands and face with cold water thru the whole day. and I dont flinch. Yes there are sensations, but they are ok.