It was more of a mind over matter dilemma for me. Here are my thoughts.
1. Sure, start on the track, and tell yourself how far you're going to go before you start. And then go that far. No backing out. I started with a mile. If you want to run on the street, use "Gmap Ped" (google it) to find an appropriate loop around your house.
2. Just keep going. Don't try to go fast...don't even time yourself. Some people start running so fast, and then they can't go for 30-60 minutes. Just go around 4x. If you
absolutely can't run the whole way, walk, and run again when you can. But seriously, try to push towards the 1 mile. One foot in front of the other. When you feel like stopping, make a deal with yourself. Like "If I finish this lap, I'll reward myself with _______. (magazine, book, running pants, new whatever, but probably not food) Or sometimes I remind myself of all the tacos I ate yesterday, and that I totally have the energy I need to run the distance I'm trying to do.
3. And by run, I mean jog, or bounce along is the way I think of it. It doesn't matter if you're going walking speed. You will improve if you keep at it. Do the mile a few times. Then go for 1.25 miles. Keep building up as much as you want. It's fun to push your distance and see what your body can do. Like I said, I started with a mile, and now I run between 5 and 7 miles a day, and my
PR is 13.8.
4. Get good shoes. Go to a running store where they analyze your step and don't be afraid to spend $$. It's better than hurting yourself.
5. Wear running pants. I have spandex pants that I wasn't comfortable with at first because they are tight. But, they prevent the chafing of thighs, which is the worst. If you're uncomfortable running around in tight *** pants, then wear a big shirt over the top. And by running, your body will get into the shape for the pants. I found mine at Target.
6. Sports bra. Get a good fit, not too loose, not too tight. I had some horrible chafing from crappy sports bras.
7. Beware listening to music if you run on the street. I've almost been hit several times, and now I don't use music when I run, but I know it helps with the motivation.
8. Take a friend or a dog. The dog is my best motivator. She wakes me up in the morning to go running. Your can motivate each other if it's a human friend.
9. Brag about it. You've earned it!
p.s. I started running at your weight, and I have to say, my legs look amazing when they never have before, and I feel better than I ever have before, too.