There is nothing to fix here, and nothing you are supposed to be over by now. What this does is help with the two things grief actually makes hard: getting through an ordinary day, and not being blindsided by a date you forgot was coming. Nothing you write leaves your device.
Anniversaries, birthdays, the first Christmas, the song in a shop. Add them and decide in advance what you want on each one — deciding while you are already in it is much harder.
A lot of people find it helps to say the things there was no time to say. This stays in your browser on this device only — it is not sent anywhere, and you can clear it or save a copy whenever you like.
Grief does not follow a timetable and there is no correct amount of it. But if you are having thoughts of ending your own life, please tell someone today. In the UK, Samaritans are free on 116 123, any hour. In an emergency call 999. Cruse Bereavement Support and your GP surgery can both help, and a GP can arrange a referral to bereavement counselling.
Practical grief is also real grief. Funerals, probate, cancelling subscriptions, telling people β there are other tools on this site for the paperwork side of it, and using them is not being cold about it.