hello from texas :)

I"m erin, 25 years old. Current weight is 150 and i would like to get to 135. My ultimate goal is to be more active, even in this texas heat. i want to be able to go hiking, mountain biking and run a 5k with no problems. I've also gained quite a bit of weight since graduating high school 8 years ago, i guess i just started to notice it. Right now i'm trying a low carb diet. any advice would be great! any people around the area to talk to would be great too. Also what does NSV mean? or whatever the acronym is that i keep seeing all over the place?