Self steem is not about being a fucking jerk. I have heard enough of the "having low self steem is bad, you have to rise it no matter what" stuff. My question is, what if you are a legit piece of shit? Is it bad to have low self steem when you fail? Of course not.
Self steem is about being true to yourself. Cut the shit in your life and have a sincere inner conversation for once.
How? Try making simple statements. Maybe you didn't fail your test because the teacher has got it on you, maybe you are just spending too much time watching others peoples life on Instagram, or playing video games and getting high. Cut the fucking crap. It will not take you where you want to be.
Yes, having a high self steem will make things easier for you. People are insecure, doubtfull and scary. If you present yourself as a condifent person others will tend to rely on you. This happens because humans are restricted to their own experience. We tend to think "shit maybe im just a fucking weirdoo, but look at that guy, afraid of nothing, unlike me" That is all, just pretend you fear nothing, and others will fear you. Its dumb knowledge, i know. It is a shouting secret, yes.
But do not fall on this trap. Excesive low self steem will get you molested by everyone else. Excesive high self steem will get you molesting others. After many years of bullying other students, and many years of feeling guilt and being bullied by others, I have made my way of living by not fucking others ways, and not letting anyone fuck with mine!