A Fresh Start, my BEFORE pics, need friends!!

Hey There! I am actually not new to MFP. I discovered it in college, when I had kinda of an "awakening" joined a gym and got serious about losing my (sophmore) 15. I successfully went from 173 to about 150 at my lowest weight. However, I still struggle daily with making healthy choices and getting in shape, even though what I want to do in life is be a personal trainer and health coach! The change has to happen with me. I want it more than anything, so I need to make it a reality.I found I was most successful on MFP when I had an amazing supportive community around me, and as I needed a fresh start after being away for so long, I decided to start a new profile. Although I lost weight before, I have yo-yoed back and forth and find myself now at 156. My goal is 140 but I am more concerned with building lean strong muscles, getting in better cardiovascular fitness, and eating clean healthy foods. I find I feel best (energy, mood, digestion) when I eat clean, but as a cruel twist of nature I cam SUCH a sugar tooth! I love junky foods. But its time to give my body the gift of health. I recently had blood tests done that show I have slightly high cholesterol, elevated triglycerides and high blood sugar at fasting. Thats terrifying! I am young, and want a long healthy life, and I already have warning signs. Time to get real folks. Heres to a fresh start!!!
Stats: 5'7 156
Goals: 140, lower BF, better health, strong lean visible muscle, better cardiovascular health.

Im posting these before pics even though its scary to do so. But I need a strong motivation to make changes, so this might work!