How can I help?

I have a very very good friend whom I pissed off royally to the point she has barely spoken to me in months. I know I fucked up and want to be better because I really don't want to lose one of my only friends. I know I should have thought about that before I made stupid decisions but even though it seem she wants nothing to do with me, and I am respecting the fact that she has barely talked to me, I still want to be there for her and help her every time she needs it i just don't know how? Maybe I'm doing enough just staying away and wishing her well from time to time. I miss her dearly she was amazing! Don't take your friends or their boundaries for granted especially close ones it hurts badly when they don't come back!💔😢