My hair is damgle i beeenswimmiong a lot and now it alll damge i need help to fix it?

im am mix with black and spainsh but i have more balck hair i had and a perm but no i have a texture and i been swiiming a lot ,y hair is falling evertime brush ore do sumthing help me plz so it can be healty and long berfore school stars cuze im staring high scgool