Hang in there, I know how frustrating this can be. I hate jean shopping (to the point where I didn't wear jeans for about 3 years). Jeans suck, especially if you are like me and carry all your weight in your thighs, legs, and butt (which is what is sounds like from what you are describing). Focus on the positive (how you feel, the difference you can notice, etc.) and do NOT focus on the size.
When I went jean shopping for the first time in years about a month ago I went to a really high end store, picked the first sales guy I saw, told him not to tell me how the European sizes equated to American sized and just find me a pair of jeans that looked worth the money I was about to spend on them...he did just that and then some even though I now know the size and it is seriously sort of a bummer...seriously, they are a 10 and I'm about the same height as you so you've got to feel my pain on that. Some of us are just built different, KWIM? I will forever have a big butt/thighs (I've been teeny tiny, about 15lbs lower than my current goal, and still had this problem so it ain't going away). Embrace the smaller parts of you as well as the more well-endowed ones.
