Image: Bend Studio / PlayStationOfficial screenshot from Bend Studio / PlayStation.
Surviving is Living is a trophy for finishing the story on Survival difficulty. Survival adds tougher enemies, a minimal HUD and no fast travel, so it is a long run.
Start a new game on Survival and finish the story. Plan longer rides between camps, since fast travel is off.
Buy Focused Shot, Iron Grip and On The Move early. Keep the bike fuelled and repaired before every long trip.