I am also going through treatment and have been working on recovery for the past two years. I was told it takes anywhere to 5 plus, plus years to fully recover.
My advise would be to postpone your goal of losing weight and make an appointment with an RD. Is that something that you think that you could do?
I deal with the mental blocks daily and the thing that has helped me the most was not counting calories. I counted food groups for the past couple of years and I have just started logging in my meals on sparks.
I know that seeking help is not as easy as it seems but it might be a good idea to make a list of your goals and write how not eating enough and the mental blocks are stopping you from reaching those goals.
I have found that reading blogs has helped me especially after eating meals. This link has a collection of blogs from authors and therapists: www.eatingdisordersblogs.com/eating_disord
And this blogger is in recovery from an ED and writes about science, personality, and she has Roadblocks to Recovery Series: ed-bites.blogspot.com/