I'm on 40 mg fluoexetine

Ive been on 40 mg fluoexetine for about a month, and i was taking them at night. I was becoming very stimulated at night so it was really hard for me to sleep. My psychiatrist reccomended I try taking it in the mornings, so I have been. For about the past 3 days. But I've run into the same issue of not heing able to sleep. When i was taking it at night, it was more restless sleep in which I was thinking all night, but it was positive thoughts. Now taking it in the morning, I can't sleep but I'm not really thinking, just generally getting really low quality sleep, waking up in the middle of the night and being unable to go back to sleep. What should I Do?