Is it ok to break up over text?

I (25f) recently decided to breakup with my on and off boyfriend (25) due to him entertaining other women and a few other things. I have so much anxiety over all of this. I have a text ready to send but should I just call? He lives an hour away. I’m afraid I will get caught up in my words.

tl;dr ok to send breakup text when you have large amount of anxiety?