What to do!

I really miss my old best friend friend. We were friends for 5 years... Me and her got into an argument and we haven't talked since this was about a year ago. It was over something really petty (I can barely remember what it was about) but I wish I didn't react the way I did... she hasn't contacted me in a full year so I didn't contact her since I was the one who made her mad, I thought to just give her space until she was ready to talk. We never had a serious argument before this. I thought with us being so close we would've became back friends, should I contact her? Or just leave it how it is since it's been so long... idk what group to put this in so I just chose a random one. 🤷🏾‍♀️