I started 10 Mg prozac about a month ago. A week later bumped to 20 mg and now have been on 40MG for about a week and a half now. I feel like I cant concentrate at all, like on one single thing. have the normal insomnia, and feel like my anxiety is on and off all day, especially if i am in a public place. will this get better? and is it normal? and when should i try bumping the mg again?