Hairstyles for school???(HELP?)?

Okay so im 13 and my face looks boyish but I wear concealer and foundation..My face is a roundish shaped..I have long dark brown hair,Layers,and a side bang/Fringe...Whenever I straighten my hair it gets poofy during the day or I look like a guy..Ive tried alot of Anti frizz leave in conditioners and stuff..I have really bushy eyebrows and glasses.. At school the florescent lighting makes my face look white and disgusting and my hair just looks HORRIBLE.. I dont like ponytails because I look horrible with them.. Ive tried alot of ponytail styles (Half up, low,high,side) Just looks gross on me.. Ive tried scrunching it.. it still looks nasty.. (My hair is naturaly poofy and kinda wavy/curlyish..im italian) Ive tried curling it but it looked all messed up... Ive tried braids.. just eww. Pigtails didnt work either.. Im not gonna cut it or anything I just need some tips on how to make my hair less poofy.. I cant go out to a store and get any products right now ..I also need some more hairstyles.. (Im not putting my side bangs up either..) Videos are welcomed :) (As long as their younger kids) So are pics.. Thnxx! (Btw I also need these for summer school because I cant concentrate knowing I look like ****)