I lost my sister, my best friend

I lost my sister 17 days ago, the pain of her loss is almost more than I can handle right now, I miss her so much, think of her constantly, I know she is in a better place but my selfishness wants her back, here with me, doing the things we did in a days time, even if it was just pick up the phone and talk about nothing, I miss her phone calls, I know when that phone rings, it is not her, my heart aches, how do I go on, and get this pain out of my heart, I love and miss you Linda.