First off, don't look in any mirrors unless you are doing your hair or makeup. We are our own worst enemies, so the less we look at ourselves the better.
Secondly, cis-women do exactly the same thing. At least we can tell ourselves it's because of a manufacturing fault.
If your hands are the same width as your friend's and 1 cm longer then they sound more feminine, to me.
If you are fit enough to get through your day easily, including climbing stairs, then you don't have to really worry about your weight too much, unless you have a health issue.
Karen.