Dry and very tangly hair 😭

Sorry this has nothing to do with period or pregnancy. I just didn’t know where to ask. I dyed my hair for my bday. I got little highlights everywhere. So it was bleached. Now my hair gets really tangly and its really dry. I hate it. It used to not be like that. It was soft. Is there anything I can use that will work to make it soft again and not too tangly. I already tried deep conditioning it. A few times actually. It doesn’t work. Plz help me!! My hair is naturally straight btw