Thank you for starting this thread. You are so not alone! In fact, we might be the same person...
My main mistakes are a lot like yours Janet:
- Buying for a dressier, hipper, chic-er lifestyle than I have. Although I'm getting better, and also feeling less guilty about having things that are only worn a few times a year.
- Buying too deeply into certain categories. This is related to the above. Once I realized I was doing too much imaginary life style shopping, I decided to purchase for the life I have. How many: skinny jeans? Sandals? Tee shirts? do I really need? Yes things get worn but it's basically all the same look.
- Search for the perfect _____________. Relates to above depth of category approach.
When something doesn't fit or feel comfortable I do feel frustrated, but I just get rid of them and move on. I don't blame myself as much as I blame the manufacturer. It's the clothes/shoes/lingerie, not me. Increasingly this annoys me more than my own mistakes, because I feel cheated.