Hi nyugen,
The way I've understood the ascendant is that it describes the way you meet the world, so in Aquarius...you may appear a little zany, in your dress or appearance. You feel comfortable when you dont "appear" too conventional. The one thing I think you'd have to remember is that while it is an integral part of you, it can also become like a mask....meaning you might get stuck in the need to look different..and not develop other aspects of your personality.
The 11th house often describes someone who is a late developer. You may see more of your Capricornian traits develop as you get older. Become a very wise older man, and yes maybe to do with groups, perhaps a writing group or something to do with spreading the word.
I'd be interested to hear how relationships have been for you because I feel you work hard at them, want to be "good" at them, but somehow they may prove elusive or unfulfilling. While relationships are an interesting mirror for us all, you need to dive into the mystery of yourself. Spend time sitting in silence, or as you say tucked up in a bookstore.
Hope that helps, luna