I'm in the thick of my degree finals and I find time to go flying. It's my little break once a week that I really look forward to. And quite frankly I'd prefer to knock off 20 mins of sleep a night to do it.
There is not a vast amount of material in A-level (frankly there isn't a great deal at undergraduate degree level either) it's all about how you use the time. 5 hours in the library doodling is far less useful than 1 hour of serious exam practice. Quality not quantity.
Get a timetable sorted and stick to it, make yourself feel guilty for sitting there and watching tv for too long. Best of luck
