Aww Abigail it sounds like you are doing so well so try not to be disheartened! You run faster than me for one haha
I agree, jealous friends! Ignore as there will be many as Dave says! The others have given great advice about how to get your time up which you can follow if that is what you really want to do (for you though.... not to please anyone elses perceptions of speed). Maybe a running or athletics club would be good for you, as there will be like minded people there, if your friends and family don't share your mindset. Or maybe there is a club at school?
I felt stupid when I first started running because sometimes I had to do it so slowly in order to pace myself and train correctly! I remember someone on here said the same and then one day posted that as he ran past a group of teens (who he expected would give him grief for running slowly), one of them said "ohh cool, look that guy must be training for a marathon"
Ahhh
For some people like me, atm, speed doesn't really matter, for some it is what it is all about, for some running is a way of life, for some just a bit of fun - YOU find what YOU want in what YOU are doing and follow it with your heart (or legs!) - don't let anyone else tell you otherwise or change what running means to you or how fast you want to or can do it.
At your age, I wish I had have found something I felt so passionate about and was good at. At your age I was smoking and drinking in the park with my mates, wasting away with no hobbies or interests or ambitions. If you are enjoying it, relish in it, keep going and believe in yourself.
And yes, cougie is right, you will be fitter and your friends will be fatter. And then we will see who feels self concious