IPA: /ˌɔːtəʊsəˈdʒɛsʧən/
KK: /ˌɔːtəʊsəˈdʒɛsʧən/
The process of influencing your own thoughts or behaviors by repeating certain ideas or beliefs to yourself.
Through autosuggestion, she was able to boost her confidence before the big presentation.
Autosuggestion → It is formed from "auto-" (from Greek "autos", meaning self) and "suggestion" (from Latin "suggestio", meaning a bringing to mind or prompting). The word refers to the process of suggesting ideas or thoughts to oneself.
Think of 'self' ('auto-') prompting or suggesting ideas to you — that's what autosuggestion means.