About a year ago, when I went back to therapy, I told my therapist that I'd like to just get it over with and recover all the memories. No more games, no more BS...out with it. Without really thinking about it...I'm not that keen on finding out everything right now. It's just not working, so I figure when I remember is when I remember.
A couple of points. When I was 21, a big chunk (not all) of my wall came tumbling down and for a time there, I was a complete wreck. I "recovered" somewhat, but still didn't get any therapy for another five years or so. So my recommendation is to find a good counsellor if you have not done so already
Second, I agree with other posters. Maybe you can chip away at the wall, or poke a hole in it. Accessing memories does not necessarily happen like getting access to the library. Sometimes the librarian goes and copies a few pages for you. Maybe it won't happen in one minute or even a day; it might take years.
It could be that your very desire about recovering the memories is what's preventing you from remembering. You're trying to access something the same way you access normal memories. But traumatic memories are not stored the same way as other memories and aren't accessed the same way either.
For me, I have to draw distinctions between what I remember and what must have happened that day. For example, I remember the part where I was in my neighbor's barn, but I don't remember how or why I got there. I know I must have been lured over there somehow and for sure lured into the loft, but that's a logical deduction, not a memory. Still by making the deduction, somehow I feel closer to the memory. (I hope that makes some sense.)
One thing I started recently (before my laptop and my backup drive crashed on the same weekend) was a timeline of both my life and the day this all started for me. I didn't get far before those files all got whacked, but I felt like I was a bit closer to remembering. What came out of that process was not so much memories as some questions I could ask myself.
Hope that all helps.