That's an interesting interpretation, Linda, that had never occurred to me....and certainly the truth, as it stands within that context.
I interpreted it as Leonard's way of stating that he's "going through the motions" of day-to-day living [by rote] and truly trying to stay "on track," by "do[ing] what I'm [he's] told" [whatever that might be], at least somewhat on the basis of a blind kind of trust, as he doesn't appear to wish to really examine it all at this moment, but is merely reflecting on the process.
However, he nonetheless remains distracted by his Secret Life, as integrally connected with "her," in my mind's eye, her being Rebecca. He left the monastery, as he ultimately realized that he is not of the nature to remain there, as others may be, hence his return to the traffic jam and Boogie Street.
The "greatest hits" could be his trusting the input of those closest to him in his music world, as to which direction[s] he might try to or "should" go. However, again, the aspect of his feelings of distraction with his outside/external world being secondary to his inside/internal world seems to be primary.
Sandra...I'm not really clear on what you meant with your comment. Could you explain that a little more? Thanks.