Every day, I use autosuggestion to boost my confidence.

He fell into self-loathing.

He has a self-centered personality and doesn't listen to others' opinions at all.

I get nervous when I self-advertise during interviews.

It's difficult to do self-advertisement in an interview.

In statistics, the concept of autocorrelation is very important.

His music is created in a world of self-satisfaction.

By conducting self-analysis, you can understand your own strengths and weaknesses.

He is learning karate for self-defence.

He is so narcissistic that he doesn't listen to others' opinions at all.