Same here lady. I felt way better once I hit 2nd tri, but these past few weeks, my energy has completely disappeared.
I get at least 8 or 9 hours of sleep every night too and I wake up in the morning feeling like I've only gotten 4 or 5.
At work I fight to keep my eyes open all day, and I'm consistently counting down the hours until I can go home and jump in my bed or just relax and do absolutely nothing with my life lol.
I could take a nap after work and still be exhausted by 8 or 9 o'clock just like you. Glad I'm not alone in this, because I was starting to worry. :(