If you're willing to start acting like this starting now and the people around you are willing to start acting like this as well, then you have a chance of not failing horribly with small-item estimates (work needing around 1 month or less).

I leave these articles about #NoEstimates on this blog purely for reference. I do not use the hashtag. I do not belong to "the movement". I believe that, for many projects and people, estimating anything smaller than about 3 months' work is probably a waste of time and energy on average. I'm happy to discuss that with people who want to learn more, but not with people who have just discovered the hashtag and wish to tell me that "no estimates" is stupid. Please read what I've written so far on the topic, and then if you have questions, please ask. All "criticism" will be ignored. All inquiry is welcome. (If you don't understand the reasons for this, then please don't waste your energy nor mine.)