Fully read the patch notes.
Make adjustments to my list of custom empires.
Choose one that seems strong/interesting or create a new one if it doesn't fit my current list.
Play at least half a dozen games out to 30-50 years to get a feel for the early game, fine tuning empires as I go.
Choose an empire I've had success with and play a game I actually intend to finish with a 2350 end game 5x crisis.
Move end game date to 2300 and go again.
Try to anticipate what a human would do to murder me early and make adjustments.
Be not terrible anytime there's a multiplayer game.
Repeat steps as necessary if I encounter premature purging.