I'd taken Chemistry at A-Level, failed the first exam and only got a D in the resit. Even though my other two A-Level results weren't bad grades I was told by my teachers It was very unlikely I'd get into any university with only 2 A-Levels and my Chemistry teacher told me there was no point in me continuing any more chemistry studies.
Luckily I got into my first choice uni, but had to take a prescribed Chemistry module and was determined to pass this one. Got my results to find I'd got a First for the module, in fact, it was one of my highest marks for the year!
Good Luck to everyone getting their results! Even if they aren't as you had hoped for, don't worry. Things can still turn out alright in the end!