It's the internet. Don't take it so seriously.
But, to be clear, I think you're the sort who needs people to "understand" you. Smart people don't say "Hey, I'm really smart", fit people don't say "I can lift a house and run a 4 minute mile", good looking people don't say "I'm very attractive". They don't do these things because they're confident in who they are and don't need confirmation from anyone else.
That does not describe you.