Successes?

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So I've been having scale drama and I think I'm just going to give it up for a while. My normal bathroom scale gives me a different reading every time I'm on it, by 10lbs in either direction. When I got on the digital scale at my doctor's yesterday it said I weighed 20lbs more than what mine at home averages around. I've been using MFP for more than 6 months. I've been under my calories slightly every week. There is no way that in 6 months I've only lost 20lbs instead of the 40 something my home scale tells me. Anyway, I'm just frustrated and was wondering if people here still have success after giving up the scale. I'm maid of honor in my best friend's wedding in December and I'd really like to look my best by then. I'm just being a spaz I guess :(