From what I see, and as far as I can tell, your composure seems fine.
Your composition, however is not.
Eye closeup (#1) is too locus-specific. Your eyes might be interesting enough for such a closeup, but I'm guessing that the biggest fans will be your mother and your GF.
Chewing cord (#2) cropped oddly, your left eye is in shadow, and the game controller on the table is distracting. Also your own comment.
Exasperated (#3) is not much of a "portrait", and the main thing I get is you somehow lost the game console or something like that.
Instead of becoming "stressed out", just relax and enjoy the process.