Select New Game (Dismiss Tutorial if this comes up).
Scroll right and select 'Open the Gallery'.
Search for 'Basketcase Family +' and download the family made by 'Misier'.
Select 'Place Household' and choose Replace. After this go to the bottom right and press 'Play'.
Next choose 'Willow Creek' & then 'Streamlet Single'. Press confirm to load up the map.
Finally press the Ultra Speed button and the achievement should pop within a few minutes.
Also unlocks:
The Basketcase achievement in The Sims 4 worth 79 pointsHave a Sim get in and out of all primary emotional states within 24 Sim hours. The All Nighter achievement in The Sims 4 worth 14 pointsHave a Sim stay awake for 24 straight Sim hours. The Introvert achievement in The Sims 4 worth 10 pointsHave a Sim do nothing social for 24 Sim hours. The Cast Away achievement in The Sims 4 worth 54 pointsHave a Sim reach max level in the Fishing skill.