You'd be surprised how nice people can be.There are some really nice people out there! And I'm happy to see you've found something you're passionate about
You're teacher knows what he's talking about. Sixth form (12th Grade here in the States) can get boring but you'll appreciate following through. I guess the next step is just making sure you have your scholarships taken care of. Some scholarships take a year to be awarded, so when you're ready you'll want to fulfill them. Other than that life goes on.
Speaking of the flu, I just got past mine; all I can say is good luck and load up on the Dayquil