Hi Angel of Saturn:)
You can safely get close to the 10-15 pound mark. If you want to lose the weight and keep if off, I don't recommend shooting for more than 2 pounds a week. That is realistic and doable. If you try to lose at a faster rate, you'll probably gain it back. So, 2 pounds a week would get you down another 8 pounds! Congrats on the 30 pounds you've already lost!
Enjoy your time with your mom:)
Lisa Nelson, RD, LN
Lose Weight