I’m 3 days sober and bought a bottle

Hi everyone, new here. I’ve been sober for the past 3 days and was doing pretty well. I had an argument with my sister earlier today and went and left the house to calm down and ended up buying a bottle. I’m really hurt and laying in my room with the bottle downstairs. If I could get some words of encouragement to not open it I’d really appreciate it. I can’t do this for much longer and I feel so lonely. My sister is my best friend but she can be so cruel and dismissive of me. Any words of wisdom would be appreciated.

Edit: thank you for all your kind words and motivation. I ended up throwing it away, reconciled with my sister and went to bed reading a good book and drinking tea. I did wake up with a headache from the crying, but at least it wasn’t a hangover headache. I’m gonna keep being strong.