First off Congrats!
I too am 6 weeks (& 6 days) and I just can't seem to keep my diet balanced. It was easier for me to eat healthy two weeks ago (before the aversions kicked in) but lately I'm lucky if I get any food down. Because of the aversions - I can't keep my diet straight so I feel ya...
The best thing I've found that has helped me is yogurt. It tastes good, is quick (so I don't have to smell the food cooking which has been a real turn-off for me) and the greek syle has a good amount of protein.
But, ya, I feel as if I'm totally messing this all up because I just don't want food and have lost interest in the healthy food. I have heard that things get better in the 2nd trimester - meaning you feel better overall. So I'm holding out hope that I can get back into a healthy diet once the adversions stop.
Good luck to you!