How can I turn the internal voice of self-hate into one of caring and compassion?

I have found that thinking more about how I speak to myself is the first step and being aware helps me figure out what I need to be ok with. It really helped me to think about if I would let someone else speak to me that way or if I would speak to someone else that way. If I would not accept it for someone else then I should not say it to myself. Instead I just say that I am doing my best and giving myself space to deal with things in my own time and way.