It is normal to go through puberty at 10 years of age, and it is normal to go through puberty at 15 or 16 years of age.
Girls often begin the changes of puberty before boys.
Many pre-teens often feel clumsy or awkward because of the rapid changes in their bodies. Children often feel uneasy when they reach puberty either earlier or later than their peers. During puberty, many people begin to develop sexual and romantic feelings. There is nothing wrong with you, but I know how you feel. All boys and girls develop at different times and rates.