I have struggled with "formal prayer" all my life, largely because I have not struggled with "informal prayer" at any point in my life. All my life, I have prayed regularly; it simply has not been on my knees and vocally, on a set schedule. I naturally commune with God; I just do it silently, in my own head. I understand the following passage from Amulek in Alma 34:18-27, since it resonates with my own experience:
18 Yea, cry unto him for mercy; for he is mighty to save.26 But this is not all; ye must pour out your souls in your closets, and your secret places, and in your wilderness.
I truly do naturally have a prayer in my heart always, and I truly do pray by actually forming words in my mind often throughout each day. I struggle, however, to vocalize those prayers and to offer them in a formal manner. I have reached a degree of peace with that conflict, since I believe it is more important THAT I pray than HOW I pray, but I still am not comfortable completely with my inability to remember and schedule formal prayers. I see it as a weakness that I still have to overcome, even as I see my tendency to pray "continually" as a great strength.
Last year, as I was contemplating this irony, it struck me that it has been easy to excuse my difficulty with formal prayer by thinking what I do (pray continually) is obeying a higher law - that if I have to choose one or the other, it is better to pray as I do than as I don't. I actually believe that, but I have come to realize that I still don't pray "completely, wholly and in a fully developed manner". In other words, I don't pray perfectly yet. That is the goal for which I am striving this month - not necessarily to pray perfectly by the end of the month, but rather to be able to learn to pray more completely by finally praying more consistently in a formal manner - hopefully once each day, but at the very least in a manner than can be considered "regularly".
I have no driving desire right now to do more than that, and, honestly, I'm not sure I ever will - since I truly am satisfied overall with the way and regularity with which I pray. All I know is that I need to learn to pray formally (and, perhaps, vocally) more easily than I currently do.