I struggle with my confidence, it's hard for me to maintain eye contact with others.
I completely understand. A lot of people struggle with having confidence in one's self.
Yeah self-confidence may be hard to build up. I think it depends on how a person was raised.
Yes it is difficult to build up and I'm sure history is a factor. It has a common meaning about handling events such as work, family, social events and relationships.
Yes, it can make one struggle in every aspect of life and causing emotional stress.
believing something or someone is capable or correct when they are not. Overconfidence or presumptuousness is excessive belief in someone (or something) succeeding, without any regard for failure. Confidence can be a self-fulfilling prophecy as those without it may fail or not try because they lack it and those with it may succeed because they have it rather than because of an innate ability.
Extent.
Taken to an extreme, over-confidence can cause problems as evidenced by the famous author Matthew Syed and mentioned here in this
her fame and how people think they know "everything about [me]" ("There's people talking / They talk about me / They know my name / They think they know everything / But they don't know anything about me"). As the chorus draws near, the song takes on a "party anthem" approach, where Duff discusses the "struggle" for joy and self-confidence: "I know I make mistakes / I'm living life day to day / It's never really easy