You mom and dad
Yes, hormones are what make a woman develop breasts during and after puberty.
No, it just makes you gain weight. However check out this website: http://faculty.washington.edu/chudler/nchoc.html It indcates chocolate may have a slight effect on serotonin levels, which would actually help improve mood-swings.
It happens by itself during puberty. For you at your age it will be soon. There is nothing to help a voice change in tone.
The best thing to do is to talk to a trusted adult.
T cells do not affect puberty. T cells are a type of white blood cells which help to figh off infections. Puberty is the name given to the period during which a child turns into an adult.
It can seem to change because the hair on your head will often times get greasier during puberty. Look for a shampoo for oily hair to help.
Unsurprisingly, they also had the awkward passage of puberty and adolescence. Many teachers are quite sympathetic and will help with guidance.
If you have not reached puberty at 18 you need help from a doctor to start it with medical help.
Female hips widen during puberty because puberty is the phase in which the females body goes from being a child to an adult, from childhood to childbearing years. Womens hips need to be wider in order for her to carry a baby during pregnancy and give birth.
Puberty is the time when children become sexually active. Sometimes they discover they are gay or bisexual during puberty. Sometimes they just get confused. Experimentation can help a child discover who they really are sexually.
No, protein drinks do not delay puberty. On the other hand, it may help in puberty processes.