How to avoid a friend 😬😬

I know, I'm 'terrible'. But hear me out.i have legitimate reasons to avoid this person. And I just don't feel like discussing it and arguing with her right now I have so much going on in my life and I'm really a mess.

I've been coming up with excuse after excuse. She's so fragile that being honest and saying I need space would end the friendship. What else can I do? How can I avoid her a little while a longer so I get get myself together?