My 2nd Goal Weight

Hi there! I've never written before, but I hit a milestone today so I thought I would share! 9 months ago I started my weight loss journey and as of today I have officially lost 87 pounds! I started at 237 lbs and am now down to 150 pounds and in a size 6! This is actually my 2nd goal weight as the first goal I entered into MFP was 160. My 2nd goal weight was 150 and I hit that this morning! And the most exciting news to me is that my BMI is now in the healthy range. I am no longer considered overweight!
MFP has been instrumental in my weight loss. It was not until I started using this app did I really begin to manage what I ate and how I excercised. In the last 9 months I have become a runner, participating in several charity 5Ks. My goal is to one day run a half marathon!
But what to do next....I'm not sure I am ready to stop losing weight, as it feels so good, but I'm also not sure when I should start "maintaining".