Don’t try altering your own clothes. It’s like trying to put on your own braces.
First you think you’re bigger than you are: I took some darts out of this skirt and sliced an inch off the waistband and when I put it on and zipped it up it fell right to the floor. Whoops!
At the same time you might also somehow decide you’re smaller than you really are. I decided to ventilate a shirt I wear to Zumba but got the proportions a little wrong. A little too much skin over the old waistband I think. Ewww!
Moral of the story: Don’t try to do your own tailoring. Just don’t. 🙂