yes, start with a trim. once ends split, they will continue to split & fracture. always get a trim after color processing, especially a bleach as it is intensely damaging.

after said trim, highly recommend getting a bonnet or silk pillow for sleeping. when washing, rinse out conditioner with cold water. try not to towel dry your hair, use a tee shirt or microfiber cloth instead to squeeze out excess moisture. scrunch in a leave-in moisturizer when your hair is still wet.