What kind of experience is it without hot water in the middle of a bath in winter?

I played with my mobile phone for an hour before washing it. I used shampoo on my head first, and then took a bath for about seven or eight minutes. I washed my hair. After washing, I thought about it and poured a lot of shampoo. I just washed my hair halfway. Why is this water so cold? So I had to squat in the toilet and wait for my mother to boil water and pour it on me. It's really cool. It's not warm at MINUS a few degrees. Because my mother wants to boil water and open the toilet door, the heat is gone. I was shivering in the toilet.