step one: do not grow cold because a loved one is now gone. it does you no good, and in the end, only bitter thoughts will grow in a body that once loved.
step two: get yourself outside on the bad days, when the world is drained of its lambent glow, and scream until your toes hurt and you know what being human is again.
step three: eventually, holding on will be harder than letting go - when it no longer hurts to visit those old haunts, but the memories are getting slippier, it is time. You are ready.
step four:* do not be afraid of this moment - you still love them, you just have to do this. Breathe. Relinquish your grip on them, finger by finger. You will fall. And you will land; your heart will flutter, and you will be free.