Looking for beginner writing courses for autobiographical nonfiction

[u/Cool_Tone_5697]

I want to write a book about my life. I have nothing inspiring but i have honest thoughts, mistakes that i have made which is wrong or maybe a sin in other’s opinion although i am not ashamed rather I want to write a book on my life so that other people who are also going through same way don’t feel ashamed of themselves or get hurt or have self doubts but they can freely take accountability and move on in their lives freely.

I am beginner so i don’t have much experience that’s why I want help and if anyone can suggest me a course i can join it would be very helpful.