Don't get me wrong: I'm not blaming you. I think a lot of people, if not most, are insecure or at least unsure about their accomplishments.
I feel that it's not really discussed: you might receive kudos from the family, but they're often outside your domain, so "it doesn't count". You might have some kind of role model: "I want to be like that guy", but that guy rarely looks back to acknowledge your accomplishments. (and he's probably looking up to somebody else too) If anybody does, it's mostly people "lower than or equal to" you that do: at best your peers, at worst people who don't really know what they're talking about.
So it's hard to see yourself in the proper referential…
I feel that it's not really discussed: you might receive kudos from the family, but they're often outside your domain, so "it doesn't count". You might have some kind of role model: "I want to be like that guy", but that guy rarely looks back to acknowledge your accomplishments. (and he's probably looking up to somebody else too) If anybody does, it's mostly people "lower than or equal to" you that do: at best your peers, at worst people who don't really know what they're talking about.
So it's hard to see yourself in the proper referential…