So I've been toying with an idea for a story (length unknown) for a while. I have one scene already set up in my head that would be the middle, but I only have a vague idea for the beginning and end.

The one scene I have:

The alarm clock blared its harsh call like a rooster. Snapping out of sleep, Rowan instinctively slammed the snooze button and let her muscles relax. She lay there letting her heart return to normal hating how every morning that stupid sound sent her heart racing. Groggily, she looked around her dim room thinking about the day that had begun. A gray light poured through the cracks of the venetian blinds bringing morning into the messy bedroom.
Rowan had no desire to leave her warm bed and not just because the blankets were warm and the pillow was soft. She was unhappy with herself. For a few weeks, the only thing she could really think about was how she used to be interested in school. She remembered back when psychology, chemistry, history and math were fascinating and could easily hold her attention. That had only been two months ago.
How had it changed? How did she go from the motivated student who was diligent and attentive to this reluctant pile? The teachers hadn't changed, the subjects were still the same, but the student was different.
Get up, a voice inside her head told her. No, argued another voice.
Deep inside of her, she wanted to return to the driven student and stay that way, but she didn't know how. This seemed to happen with every class and every subject. Each semester, class started out as a wonderful time and place filled with engaging teachers and topics that delighted the mind, but would eventually turn into a mundane routine. Even when Rowan loved the subject, class would turn into a distasteful activity.
Is this how it is going to be? she wondered as the alarm screeched at her a second time before she slammed the snooze button again. Is this how I'm going to feel about my job? About college? Even if I get my dream job, will I still feel this way? Will the things I love become dull in my eyes?
It's not as if she hadn't tried to go back. Indeed, she had tried to study a little more and tried to force herself to be interested in her classes, but it hadn't worked yet. She had even tried going to sleep earlier at night for the past week thinking that her apathy came from lack of sleep. This morning she concluded that it wasn't a lack of sleep.
Teachers, parents and some people in the media encouraged Rowan and her peers to do what they loved. In reality, the message seemed more like: do what you love just so long as you earn a lot money. Even though society doesn't want to admit its obsession with money, it couldn't be denied. School curriculums are designed to teach students the skills they need to earn large salaries, not how to pursue their real interests.
Does it have to be this way? Do I have to accept this and just endure? Is there any escape or alternative? I'll make an alternative, Rowan decided turning off the alarm clock as she threw off the covers.

I think that this could stand as a short story on its own, but I think I could go further with this.