Hello. Though I am still a newbie (I had my surgery in Feb), I remember when my first few weeks of having no energy at all. It will pass but to help make sure you are taking B-12 and Iron regularly.
As for the meat, chicken is the hardest thing for me to eat (our program doesn't allow for red meat until 6 months.) Yet I have found that shredding chicken helps. Fish was fairly easy for me but if it's a bit dry, it is a no go for my stomach. Have you tried salmon and crab?