Shyloh, You are very welcome to hang out here. You may not need to go so far into the low carb side of things, however. Why not try aiming for Primal carbs between 50 and 150g as you have done today. If you are going to drop, them slow is a good idea. Maybe a more balanced approach to start.
Let's see, 1900 cals
100g carbs avg = 400cals 20-25%
100g protein = 400cals 20-25%
120g fat = 1080cals 50-60%
If you want to go the way of our plan right away, it would be...
HSIS wt 57 kg
If you take the higher levels of protein and fat you get about 1900 cals.