Grieving

My 10 year old basset lost her fight to cancer in January. I’m having a really hard time getting over it. What makes it really hard is that my 4 year old Basset Hound just walks around bored and goes outside 150x a day now out of boredom. I still cry multiple times a week and whenever I think of her I break down in tears. I have lost pets in the past and my grieving has only been a few days. I can’t get over losing this one and I hate myself that I can’t. She was the best dog ever and loved everyone and she didn’t deserve a horrible cancer. My 4 year old Basset has gotten a lot more clingy since Lucy passed and I keep telling her she has to learn to be by herself she can’t always go everywhere with us.