If you're talking about the bell bottoms question that I scrolled upon before! the I think that you should just tuck the bell bottoms in the boots like you said. They're not really in trend right now, but then again, the trend changes quickly, so I think you should keep the pants! but just tuck the to the side by folding them over and pinning them with a small safety pin. This way your pants won't look as baggy on the bottom. Hope that helped. c:
A lot of cute styles are popular right now! If you want some specific outfits search Pinterest. The outfit are sooo dang cute and that's what popular right now everything you see on there. But for a basic idea; nike anything haha ;) Sweaters leggings and uggs Solid cardigan infinity scarf jeans and boots And then there's always the hoodie and messy bun with a pair of blingy jeans.. Haha. Just go search Pinterest.com and look under womens fashion there's tons of teen outfits being pinned.
One of the site my sister always visits for Latest fashion trends,latest hairstyles,stylish skirts and tops,Fashion dresses for party, etc is http://fashiondressesweb.com/category/dresses/ so if you are looking for new fashion for teen this site may be helpful for you.
usually you just look for the most expensive stuff lululemon victorias secret/PINK Hollister UGGS over sized sweaters and crew neck sweatshirts vera bradely straight hair or messy bun no makeup or very little-keep it natural northface nike adidas oh and just so you know your super pretty (if that's you in your pic) so it probably wont matter what you wear