Solution?
Find your inner 5-year-old... or learn to temporarily switch off your critical convergent thinking. Ask yourself (or, better yet, your team) what are ALL the ways we might solve this problem? There are no bad answers, because there is no critical convergent thinking applied to them. Just stream-of-consciousness spewing out ideas.
Real-World Illustration
Let's examine how this might manifest itself in our real-world experiences. The scenario is that we have a technical problem to solve. Often, our process is something like this: We think of option A. We quickly analyze option A and realize it's probably not viable. We imagine option B, with immediate subsequent analysis leading us to conclude it would likely work. And off we go to implement it.
Now consider the alternative approach. We first just start listing out options A, B, C, D, E, F, and so on through P. We might chuckle as option C comes out of our mouth because we can't help seeing its ridiculousness, but we continue. Then, after listing the options, we switch back into critical mode and consider them. Yeah, C is pretty silly, but it is interesting to consider one novel aspect of it that could be very beneficial. Option E would probably get us fired, so let's scratch that one off the list. It turns out that B is probably the most viable, so off we go to implement it, along with that one aspect of option C.
We already arguably have a better solution. But now imagine what happens if, after a few hours of work, we realize there's a blocking and insurmountable problem with option B. Consider where that leaves us in those two scenarios. In the second one, we not only immediately have other options to consider, but we might still be able to salvage the option C detail on our new path.
With an Asterisk
I will note that some psychologist and researchers define creative as both novel (new, original) and useful (of value). While children may easily outscore adults in the first category, it is adults that are generally more able to produce things society finds useful. There is certainly no shame in critical, practical thinking. The goal is to find the balance, and as an individual that may seem extremely out of balance at first. You can also see the value of diversity in personalities and approaches when it comes to teams.