Rather than "going crazy" with colosan, why don't you use it to get things moving and go crazy improving your diet, so your bowels don't get clogged up in the first place?
Moderation and consistency are the key to robust health. In case of acute illness, the cure may require a radical change, but more importantly, the cure requires sustained and persistent commitment to yeild lasting benefit.
In the two weeks before you try to flush again, eat a whole apple before each meal and one before bed. If you can do that regularly, that one simple change could improve your bowels in a couple weeks. Probably not perfect, but on the path.