Ya that is not an easy jump, but you never know. i ran 12.4 my jr year of high school and it took til my soph year of college to get down to a 10.85. But, if you train right mid to low 11's are definitely attainable. Hopefully your still developing physically because just getting older and my body maturing cause the biggest drops in my time rather than specific speed training. Make sure you develop a good drive and transitional phase and sprint form because in my experience speed training will peak your maximal velocity, but good form and running the race correctly will make the biggest impact on your time.