Short and sweet - 5'4 / 186lbs with a goal weight of 140

Hello! First, thanks for taking the time to read my post...I'm new here and actually, fairly new to message boards in general, so trying to get in the groove of things. As the title would suggest, I'm fairly short, but I've got big goals, and I would love to make some friends that are like-minded. Accountability is an issue for me, as I don't have anyone in my life that is interested in getting healthier at this time, so this is a solo journey for me. I have had several previous attempts and failures at losing weight and getting into a healthier lifestyle. I topped out about a year ago at 205lbs and have been taking 3 steps forward/2 steps back since then. This most recent attempt began 2 months ago when I found my weight back up to 196 and I decided to try a low carb lifestyle...not a diet, a complete change in the amount of carbs I eat. I cut out bread, rice, potatoes and pasta. I lost 15 pounds within a month, but got sick and lost my willpower and gained back most of that. In the past few weeks, I have started getting back into eating lower carb, though not as strictly as I feel if I go cold turkey, I'll fail again. My biggest reason for losing weight and getting healthy is my son, who turned 3 this week and is getting more and more active. I want to be a part of the activities and not watching on the side lines! If you can relate, we should be friends!