Many people delay starting something because they are waiting for the perfect moment. The truth is that perfect conditions almost never exist. Progress usually begins with imperfect action.

If you want to start learning a skill, building a project, or improving your health, the best time is simply today. Even small steps matter. One page read, one workout, or one hour of focused work is better than doing nothing.

A helpful idea about starting before you feel ready is discussed here:
https://jamesclear.com/motivation

Momentum builds confidence.