I'm sorry for your loss RFS69. No matter how old our parents are when they pass on, we continue to love them and miss them not being with us on this earth. And that's true whether you're 7 or 70. I lost my mom 40 years ago when I was 28 and I still miss her to this day. It took a long time before I could think about her without welling up, but I can think of her now and actually smile instead of weep. I try to honor her by living some of the principles she tried so hard to teach me and then passing those same life lessons on to MY kids and grandchild.
Give yourself the time and room to grieve in whatever way you need to and remember that "weeping may endure for a night but joy cometh in the morning" (Psalms 30:5).