Heyy, it's always hard to lose family and we all know that our dogs are exactly that, part of our family and whoever denies it is a damn fool... I feel so much for you <3 My dog passed away 5 years ago, but I miss her everyday... damn has it already been 5 years? Time passes so quickly. I grew up with her and she was my everything, so I know what you are going through and honestly, take your time to grieve and give yourself some peace, we all understand :)
It must've been hard to have her pass away in your arms, but at least she knew you were there and that you cared for her until the end. She'll always be in your heart and one day remembering her will fill you with more joy than sadness :) I can tell you that from experience.
Take your time, take care of yourself and allow yourself to be sad, we'll be here supporting you <3