I’m okay at planning out short-term projects, but I have trouble with longer time horizons. As a new engineer here at Mercari, I'm currently working on a 90 day plan and I've been thinking about how to estimate projects. I want to figure out timelines in particular, so I can properly manage expectations. A lot of the time, I’m over-optimistic about what I can achieve, so I want to build a better muscle there.
For reference, I consider <1 month to be short-term and 2+ months to be long-term.