So a person must eventually face the music that what is required is the experession of some innate state of divine perfection. All the G-dly wisdom and inspiration is meant to stir us to reveal and adopt a more perfect lifestyle. And this is achieved by jumping headfirst into one's purpose in life.
So there are two problems still. First, what if I don't want to jump into it? And what if once I've jumped into it I still find I'm not keeping all parts of the Shulchan Aruch?
The first question is a question that the Rebbe addresses at length throughout many discourses in terms of the preciousness of becoming a messenger a Sent One, in this world. Maybe the question isn't so much about wanting to be one but rather wanting to do what it takes to be one. It's easy to want to be rich, it's much harder to put together a business plan and carry it out. The link between learning and doing is always through prayer. Prayer helps to draw the things that you value into an emotional connection with that thing and eventually to its translation into the physical realm in the form of deeds.
This is related to the previous point. I find the more I'm removed from my everyday environment, the more actively my heart opens up. Sometimes prayer is just a contemplation of all the things I need, and sometimes it's a real cry for help. The farther you are, the more prayer becomes a simple cry, a shofar blast. Shlichus may coalesce around us as we alternate between shofar blasts and more intellect-based activities. It seems we're not actually making a plan and carrying it out, but rather living from day to day trying to bring down the piece for that day and not really knowing how it will fit into the overall jigsaw puzzle. Our physical life is structured - we have to go to work, to eat, to fool around - these things we understand how they come about and why. But the shlichus of the day is hidden - we merely catch momentary glimpses.
Then what about bringing about a state of perfection? Will I never have a perfect day? What about just keeping the whole Shulchan Aruch for a day? In short, when will I be a Beinoni? These are bigger questions that really belong to the beginning of Tanya.
To be a shliach simply means that the commandment, the good deed I'm doing now is not because of habit or for my own personal intersts but because I feel I have a G-d given duty to carry it out. I have the power to elevate that deed to make it light up the world around me, and it in turn has the power to elevate me and enlighten me.