In this guide we explain you the following trophy/achievement in We Happy Few:
Now I Can Die Happy
Die while overdosing on Joy
Once you have left the rehabilitation center, you will see on the left side a joy booth you can go to until you have an overdose.
Once overdosed, go to the edge of the cliff and jump off the map to die. This unlocks the trophy / achievement. Below you will find a video that shows you exactly how to solve the task.
You can find a complete overview of all trophies here in our We Happy Few Trophy Guide.