Get a good postdoc position, network lots with academics who might help you, or at least let you know what to expect. Be prepared for getting jobs to be based on luck/who you know rather than merit/ability. When I was halfway through my PhD, I wanted an academic career too! But now I have seen how unpleasant and high pressure an environment academia is, and how it is often built on exploiting researchers who have not obtained the coveted academic position.