Before you break the proverbial glass ceiling(s), befriend a bra. Not just any bra, but a well-fitting bra (may I suggest a Victoria's Secret bra fitting). I am haunted by years of living with a mother who would have burned bras if she'd been old enough in the '60s. When she wore a bra, it was one with only the sheer cup and underwire. Underwire is not the only support you need (especially if you are a B or larger cup).
I was watching something not terribly long ago and they were doing bra fittings (probably Rachel Ray or GMA or something). The lady said that an ill-fitting bra can add at least 10 pounds to your body. I pondered that thought.
I have a pretty good friend who just looks much heavier than she is because she wears an ill-fitting bra and her chest is too close to her stomach. It bugs me. I see women in Wal-mart parking lots whose stomachs are touching the top of their chests. It bugs me. I go home and I'm lucky (my poor husband) if my mother is wearing a bra (not that it matters if she does because her's suck). It bugs me (and makes me want to vomit).
Please, I know money is tight. But THROW AWAY THE CRAP-TASTIC BRAS! Go find one that fits - no matter where it's from (Victoria's, Wal-mart, JC Penneys, KMart, whatever). I do encourage you to get fitted by a professional (don't do it yourself, you'll screw it up - that's like a 17 yo trying to fit himself for a tux for prom). Then cut some coupons to save on something else so you can invest in just one bra, one well-fitting bra that may just make you look thinner.
Edit: this was brought to my attention by my friend, Kathy. Please read it. I've never thought of wearing a bra as a freedom - but it is. Somali women beat for wearing bras.