Questions for my Biracial Hair?

Okay i have biracial hair and it is very course with tight curls and really thick towards the top and thin at the bottom half of my hair... And see i always mostly have to wear my hair up in a ponytail because my hairr will like frow up and probably cause i dont have the right hair product in my hair and my 8th grade banquet is soon and i would like to have my hair down for that so if you know of some good hair products and hairstyles and just anything to help me with my hair plz telll me! thnx!