I feel I was prepared in most of these areas. Though I'm not too sure about the "familiarize yourself with common challenges" one. And I'm still unable to find writing partners or a group. I saw that there is a writing workshop at the local arts council center, but it's on Wednesday nights and will conflict with the Advanced Memoir Writing Class that I plan to take (I sent in the registration for that class yesterday), at least for the six weeks that the memoir writing class will run.
And I didn't try to map out a plan as described above, as I was not aware of this idea when I first started writing. So I guess not knowing that one set me back a little in trying to get to the next step in finding an editor. But I won't let it stop me from trying. Just knowing where to look is what has been difficult.
Despite all this, I think I can continue. I just didn't know about these preparations until today.