Pretty new, some motivation may help.

Don't ever go below 1200, that's too low and will only slow down your metabolism. I weigh 145 and I eat 1650 calories a day! Even more than that when I workout. I had let myself get up to 155 when I was planning my wedding and it took three months to lose the ten pounds cause I didn't want to go too low - never had a day where I went under 1400 and most days I ate the full calorie portion of 1650 + whatever calories I burned on my run. I am not a gym rat, but I do run 3 times a week (2-3 miles) and lift weights once or twice a week. Make sure you get enough fuel to keep your body breaking down fat and not muscle. I agree with the previous post - slow and steady. Everyone wants to lose weight like yesterday, but trying to go all out and too low only backfires. Pick a good calorie window that will allow you to lose weight and feel satisfied (generally in the 1400-1600 range for women plus more on exercise days), get enough nutrients (including protein) and fuel your workouts. Hang in there, I know you're desperate, but you have to do it the healthy way to get the best results. Have faith, if you log consistently and workout regularly, you'll get there - good luck!!