Well, I'm 5'7 (and a half

) and weighed 149 on Nov. 19th. I'm older than you, too (32 on Saturday). I've been eating 1400 calories per day (I've had probably 4-5 'cheat' days during this past 5 weeks, though) eating what I WANT, not low carb or low anything per se (except cals) and have been doing 45 minutes each day cardio and some days more. I am currently 130! Also, I had been doing a lot of cardio before Nov 19th without dieting and not much change. The calorie counting made the difference for me.
You have a lot of time and with dedication, you can get down to bikini size by April. I'd (personally) quit the pills, though. You don't need them. Instead, spend your money on new clothes. I am constantly trying on clothes, some a little small (many of which are now too big!) to stay motivated.
My personal goal is between 120-125, and then I'll probably maintain on around 1600 cals per day along with a weekly "splurge" on some sort of treat (like a caramel sundae).

That's the plan.
Good luck!