It's normal, don't worry. Even though I fancied people in year 11 and sixthform I didn't go out with them. I only fancied 3 people in 3 years because the boys seemed really immature and stupid. I didn't get into a relationship until I started uni even though there were rare occassions when I wanted someone in year 11 and sixthform. It wasn't important to me though. All the heartbreaking rejections were very upsetting, (I'd fancy someone for months, flirt, joke and become friends with them, then they'd reject me). I stopped thinking about relationships and focused more on actually getting my GCSE's and A-Levels, they were more important. To me a if a relationship happened if it happened.