I'm not really a fitness buff. Develop the mindset that you are a fitness buff. See yourself as one and you can become one. Of course it takes action too. Keep a regular exercise schedule and make fitness and healthy eating a priority in your life.
Some ladies have the motivation and drive to continue while others only have good intentions.
For many ladies the motivation to exercise is for health and appearance reasons and since exercise does not produce instant results sometimes motivation can be difficult to maintain. Focus more on product vs. process. Sports psychologists say that if your focus on how well you're doing an exercise rather than on just doing it, that you'll be more successful at sticking with it. Talk to yourself. Personal affirmation is very important.