Bhai, you've touched upon a real raw nerve!
I often sit back and seriously think that I should just put a couple of them on the back-burner, and wait for one to finish before recommencing work on the remainder, one after the other. The basic flaw with this line of logic is the fact that these projects never really ARE completed. They simply morph into a different state of being...with a set of completely differing requirements. One day, if you're replacing the tie-rods on one, you're fixing the propeller shaft on the other, choosing the bloody namda for yet another, and deciding whether square lights or round ones will look good on a bike.
At the same time, though, I consider myself lucky...to be in the midst of such challenging (and satisfying projects). And thank Allah a million times each day, that He's put me in this position, regardless.
Waisey...yeh neend kiya cheez hotee hai...?