Make it a priority. You can slack off later, not now. The toughest part of getting into the habit of running is now, so don't give up.
Running is not really hard. The hardest part about running is getting out the door.
It's good to have a vision of your goal. And while it's common for women to keep such goals in terms of pounds or kilos, I'd suggest your vision to be something like "Come December I've kept running for 4 months". If you stick to running, your body will thank you by toning up.
Obsessing about weight is torture. Running is pleasure. It might not feel like it now, but you'll get there. If you keep it up.