Please help me!?

okay....i have mid-back length light brown hair...last year was my first year of middle school and i was in PE but everyone saw me as a really girly girl.... and i dont want that... so i signed up for athletics this year and im going to try and not act as preppy and girly.... but i need a way to put my hair in a updo that will stay all day long, that i can touchup and make look good after i have 1st period athletics........i want my hair comepleatly up and none down........and i dont really want that girly look but i still want to look cute!........also how should i do my hair when we take school pictures! thank you bunches!