I relate to this as well. Though I'm less likely to resist canceling of plans than spontaneous activity. A canceled activity, especially if it's potentially uncomfortable, leaves room for other, more comfortable things. And since I've stored up energy already, I can either expend it doing something else or save it for later.
Not that this helps the conversation any, but I fit the "judging" description Jarno put in the OP. In my personal life and activities I almost always prefer advance notice when I need to do something, whether that's preparing for a guest or going out to do something. And I'm discovering the same is true in my professional work. For example, I try to get my clients to tell me at least two weeks in advance when they need me to get something done for them. I respond very slowly when people spring something on me. I need a certain amount of time to get myself in gear and settle things in my mind.
That's not to say I can't be spontaneous. It does happen occasionally, lol. It's just I'm more likely to easily switch directions if I'm already in a "going" or "energy output" mode. If someone urgently needs something from me right away, I'll usually do as much as I can to help them asap regardless of advance notice, though I'm usually more efficient when I know what I'm doing.
I tend to agree with the above. It's because the 1st function is a judging IE (and "judging" is a confusing translation, I think, arousing various strong cultural connotations). The 1st function is the natural one, the one you live by. So from a theoretical standpoint, what Maritsa says here is sound.