Week 5 - still feeling out of it/dissociated at times?

Is this normal for this medication, or is this a sign it's not a good fit for me? I'm told it can take up to 6-8 weeks for "full effect", but I don't know if i should be over this kind of feeling at this point. It makes me feel really spacy a lot of the time. It's not *all* bad, sometimes it feels like its helping a lot, but other times i'm just a mess.