Cashmoney

I was thinking about playing junior varsity football next year I'm 14 as of 09/16/2012 ill be 15 I never played football and went to watch some of the practices but i kind of got discouraged because the coach have you stand 5 or 6 yards then run into each other the loud smack from the helmet and shoulder scared me but Im tough i can tackle but every time I look at what there doing I get butterflies in my stomach. I was wondering why am I SO scared and does it hurt when you run into each other I want to play so bad i been studying football for the last 4 years i been wanting to play and i want to play outside linebacker or defensive end i'm 5'6 and 164 ibs but I just hope someone can please answer my question please!!!!!