i know what you mean as far as being nervous about starting puberty. i'm in year 7 at school (1st year of high school in sydney australia) and when i change and shower after school sport it feels weird becasue i'm one of the only guys in my grade that has pubic hair and a reasoable size penis and it makes me feel strange sometimes compared to the others. although i was excited when these changes started happening i was very nervous as well because i looked different to everyone else. like 'leper messiah' said above, guys really like looking at girls that have started growing their boobs. in fact the girls in my class that have started growing their boobs get most of the attention from the guys so i don't think you have anything to worry about. hope this has helped!