Hi Saud,
What about adding the \n (ie the Enter key) using JS to re-org your text before you saving the text to the backend? You can make a Big text area for user to enter long text, just add JS code in Save button which will manipulate the text by checking length, then re-make text string by adding \n in between.
Just an idea you may try.
Hope this can help.
Br,
Dong Zhu