Highest Weight Ever......

A year and a half ago I was where you are now... so tired all the time, barely able to walk around the block. Trust me, not being obese is so much easier! The more you do, the more energy you will eventually have. I started out morbidly obese with walking, slowly biking on my stationary bike (nice because no excuses, it's possible in all weathers), wall push-ups, bodyweight squats, and lifting water bottles. Now I can do real push-ups, squat my body weight, bench 125 lbs, and run 5k. And I'm normal weight! You can do it too, just fifteen minutes a day to start with if you don't have energy for more. In a year you won't recognize yourself.

Personally I had 80lbs to lose. I went down 20lbs in a about 2-3 months and honestly I may have exercised 2-3 time each month. I chose to instead focus on my eating. I found easy healthy recipes (that were flavorful and nutritious) that I could adjust a little bit here and there to fit into my calorie goals each day. Now that I have my nutrition figured out more and it is less overwhelming I'm incorporating some exercise. Right now I am doing step aerobics from a youtube video. It's 30mins and I die at 8mins. Instead of feeling like a failure when I can't make it past that I tell myself instead that next time my goal is to get past 8mins even if it is just 10 more seconds.

You can do it. It's hard. It feels impossible. But you can do it.
Set small achievable goals along the way. As you meet them you'll feel motivated to keep going.