Grandiosity is a problem in the startup space. Grandiosity can be a sign of personality disorders… or, if you ask me, it can be a sign of hanging out with people who exhibit grandiosity, tell you it's what you have to have to achieve what you want, who laud you for having it, and who mysteriously aren't there to help you when you fall on your ass. In fact, who tear you up when you do.
Yeah, it sounds like high school, doesn't it? Only the stakes are a lot higher.
Every time I hear somebody say they are going to "change the world," I cringe. I imagine those people as some combination of arrogant fucks (pardon my english) and/or depression waiting to happen.
Please, please be reasonable. If you want to change the world, start by volunteering at a soup kitchen. Don't expect your startup to "change the world." Don't think you have to, to achieve your dreams and help people, either. Don't talk yourself up. If you're insecure, let yourself be insecure, don't slap a layer of grandiosity and self-aggrandizement on top.
Please, don't be somebody to other people who you aren't… the more you pretend to be confident to others, while being insecure inside, the less you feel like anyone KNOWS you, or cares about you, the more alone you feel, the more likely you are to really, desperately feel the pain of isolation.
The best way to be happy is to be grateful for what you have, not to constantly anticipate becoming famous or rich or having an outsized impact on the world when you haven't even made a tiny, local impact first. Have perspective. Volunteer. Spend time with your friends, and your family if you like them. If your friends exhibit all of the above symptoms, make a few new friends who are totally disconnected to the whole "ecosystem" so you can simply be real with them. (Note: not saying you should drop your grandiose friends. But consider whether they're healthy for you.)
Otherwise you risk being caught up in a spiral of obsession and disconnection, a constant raising of stakes ("Who's going to change the world more!? Who's more ridiculously confident?! Who can work longer and harder?!") which will, statistically speaking, never pay off.