ready to do this for real

Let's see I am a 27 year old mom of 3. I have been overweight my entire life...but its gotten really out of control.the highest weight i ve weighed in at was 369 which was a little over a month ago....honestly I'm tired of being fat. Tired of being looked at for. Being the fat girl. I've been watching what I get and been going to the gym to workout at least 3 times a week....I've lost 18 pounds so far but have so much more to lose...I'm looking at this as a healthier lifestyle not adiet....I'm ready to put this weigh behind me and move on with my life