Please tell me some home care methods to prevent hair loss.

I can't tell exactly when it started, but I'm worried because my hair feels weak and falling out.
Since I have limited time and would like to correct my lifestyle before visiting the hospital, I am writing this post to ask about effective home care methods for preventing hair loss.

As someone with limited expertise, it's difficult to determine which of the vast amounts of information on the Internet are truly helpful.
What are some basic yet essential home care routines for preventing hair loss, such as shampooing methods suited to your scalp type and drying temperature?
I would appreciate it if you could suggest a home care guide to prevent hair loss.