Precrastinate

It can also “precrastinate,” that is, engage in a series of tasks too early, in a way that results in serious and unnecessary burdens and costs.

Source: wiktionary

You know me. I never procrastinate. I do the opposite. I precrastinate.

Source: wiktionary

Because of the general application of precrastination, it was picked up by the media (eg, Richtel, 2014) and even led to the suggestion that people who precrastinate sacrifice creativity because they don't leave enough time for incubation (Grant, 2016).

Source: wiktionary