Well i have the same problemm ,
what i do is , try not to wash your hair as much ( like everyday )
They say the oil in your hair is good , Also condition tones
& if its really that bad , get an oil treatment .. there probley bout 10$ at the most
And when straighten hair use hair straighten protection creams , there not that expensive nither ..

Good luckk - hope this helps a bitt

thankyou for your reply i will try this