Hair damage.answer asap plzzzzzzzz.?

i have medium sized kinda long blk layered hair.i have naturally straight hair but i straighten it everyday anyway because its not really straight straight.im straightening too much though because now i have split ends and everybody says ur hair will start falling off w/too much heat.i think its starting i mean theyre not big chunks of hair theyre super thin flakes that fall off wen i straighten.i love my hair straight and its just something i do wen i go out.curling cant help either because its still heat.can you guys help me and give me ways to do my hair w/o using heat.p.s- im not accepting ponytails.i dont really like em.thnaks!!