I found this "little" technique is immensely powerful. I've found that talking to people about everything I'm currently working on (as opposed to what I've completed) deflates my excitement a little bit about what I'm working on. After a few rounds of this, I no longer want to finish what I've started!

Additionally, if I'm able to get that burst of endorphins from people just by telling them what I've started, then I no longer have a strong enough reason to build up a list of things I've finished.