I have been taking Duloxetine for a month

Duloxetine is one of those medications that treat lots of things, a bit like Amitriptyline.
I have been ok on it, but it makes me feel tired and it is very boring, and I am not really interested in doing much.
I would really like to be on Fluoxetine with a medication that helps with my insomnia.
I suppose Duloxetine is ok for older people who just want some relief from their suffering until they die.