Why o why o why?

I feel sooo very sad :-(
At school, I try so hard with all my GCSEcoursework- I present it nicely, I use a wide range of vocabularly... however it feels like I am trying so hard to do my best- most of my friends don't get so much work and so can go out...

and have fun- but I just stay at home on the computer trying to catch up with deadlines. Yet all the teachers don't seem to even appreciate the hard work I put in- I feel as if nothing is ever good enough anymore and to be honest, I've given up. I try for the top grades, but I rarely reach them, no matter the amount of time and work I put in.
Could anyone offer any adivce or please say something to cheer me up as I feel so lowww...

I wouldn't give up. Good things come with time. Lots and lots of time. I know it's probably seems it's been forever already. But trust me, you'll get more out of all of it than the people who are done faster and do less work in it. Your reward will come, whether it's sooner or later. But for now, take pride that you work so hard. It takes a special person to be so devoted!

Look, not everyone gets things as easily. Some things take some people a little more work. My friend didnt always get the best grades in math, and the sciences. She'd never gotten above a C in any of her tests. But for her GCSE, I helped her study for a week and she managed a B... so my point is, dont give up, because you will eventually get there. And remember that teachers arent psychic. They cant see how much work you put in. All they see is that final grade. If they see someone who spent an hour studying and got an A, versus someone who spent 5 and got a B, they cant tell the effort that went into it, they just assume you didnt spend as much time...