Coping after miscarriage

I had a miscarriage 2 weeks ago. Found out at 8w baby stopped growing at 6w. Most days I'm okay. But when I see someone pregnant I'm so mad/jealous. When I see newborns and baby clothes, I get so sad. I'm always looking at my ultrasound pictures and my + pregnancy test. Always telling myself the baby would be 10w this week. We are going to start trying when we can. But sometimes I feel stupid like how can I grieve/cry over a baby that was only 6w. I'm just so lost sometimes. 😞