Want match for work

While listening to the latest Brooke coaching on Friday, I related the first topic on relationships to my work situation. Would the “want mismatch” that she went through with the guy she dated apply to me at work. I get the gut feeling that I’m not fully welcome at work and that I’m not smart enough or good enough to be there. I can’t tell if that’s just my own insecurities or if it’s just a clear cut “want mismatch”