Yes doing all this is an innovation. Mourning for more than three days is not allowed.

Is celebrating death anniversary haram?like 40th day, 1st year etc., In my family some of them are doing this and if this is wrong in islam then what should I do? When they invite me to eat to their home then can I go to their home and eat ?

Funerals | November 17, 2017 9:16 pm
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Here some people says that once a person died, we should not talk bad about him cause for our bad comments he would get bad treatment. On the other hand if we talk only good about dat dead, he would get reward from Allah for that. Is that true? If yes, there are people who have two faces what will happen to those.
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Is it allowed for women to pray funeral prayer?