Losing my mom

My mom passed extremely suddenly nearly a month ago (in 3 days it’ll be a month). I’m in my mid 20s but I lived with her. I don’t think it fully set in yet but it hurts. I’m constantly doing paperwork and phone calls and I don’t have time for myself. Every now and then it hits that she’s gone forever. Part of me somehow thinks she will come back. Idk what I need I’m just hurting