premenopausal and trying to lose weight. HELP!!

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I am 43 yrs old and premenopausal. I lost 60 lbs over a yr ago with MFP. I fell off the wagon 23 lbs away from my goal weight and gained around 15 lbs back. Stresses in life being a huge factor. Getting things back on track now and have been back on MFP for a couple of months and have not lost anything. I was wondering if my hormonal state has anything to do with this. Any suggestions as to how to kick start my weight loss again. I am getting very frustrated and losing hope of ever losing it.